You can damage both your unit and the CD changer if you connect them incorrectly.

Lens Fogging

When you turn on the car heater in cold weather, dew or condensation may form on the lens in the CD player of the unit. Called lens fogging, this condensation on the lens may not allow CDs to play. In such a situation, remove the disc and wait for the condensation to evaporate. If the unit still does not operate normally after a while, consult your Kenwood dealer.
iPod is a trademark of Apple Computer, Inc., registered in the U.S. and other countries. The "AAC" logo is trademark of Dolby Laboratories. English |
If you experience problems during installation, consult your Kenwood dealer. When you purchase optional accessories, check with your Kenwood dealer to make sure that they work with your model and in your area. The characters which can be displayed by this unit are A-Z 0-9 @ " ` % & * + = ,. / \ < > [ ] ( ) : ; ^ - { } | ~. The RDS feature wont work where the service is not supported by any broadcasting station. The illustrations of the display and the panel appearing in this manual are examples used to explain more clearly how the controls are used. Therefore, what appears on the display in the illustrations may differ from what appears on the display on the actual equipment, and some of the illustrations on the display may be inapplicable.

Cleaning the Unit

If the faceplate of this unit is stained, wipe it with a dry soft cloth such as a silicon cloth. If the faceplate is stained badly, wipe the stain off with a cloth moistened with neutral cleaner, then wipe it again with a clean soft dry cloth.
Applying spray cleaner directly to the unit may affect its mechanical parts. Wiping the faceplate with a hard cloth or using a volatile liquid such as thinner or alcohol may scratch the surface or erases characters.
Cleaning the Faceplate Terminals
If the terminals on the unit or faceplate get dirty, wipe them with a clean soft dry cloth.
Before using this unit for the first time How to reset your unit
If the unit fails to operate properly, press the Reset button. The unit returns to factory settings when the Reset button is pressed. Remove the USB device before pressing the Reset button. Pressing the Reset button with the USB device installed can damage the data contained in the USB device. For how to remove the USB device, refer to <Playing USB (iPod) device> (page 18). Press the reset button if the disc auto changer fails to operate correctly. Normal operation should be restored. This unit is initially set on the Demonstration mode. When using this unit for the first time, cancel the <Demonstration mode Setting> (page 29).

Reset button

About Audio file

English |

Handling CDs
Do not touch the recording surface of the CD. Do not stick tape etc. on the CD, or use a CD with tape stuck on it. Do not use disc type accessories. Clean from the center of the disc and move outward. When removing CDs from this unit, pull them out horizontally. If the CD center hole or outside rim has burrs, use the CD only after removing the burrs with a ballpoint pen etc. This Product is not installed by the manufacturer of a vehicle on the production line, nor by the professional importer of a vehicle into an EU Member State.
Information on Disposal of Old Electrical and Electronic Equipment (applicable for EU countries that have adopted separate waste collection systems)
Products with the symbol (crossed-out wheeled bin) cannot be disposed as household waste. Old electrical and electronic equipment should be recycled at a facility capable of handling these items and their waste byproducts. Contact your local authority for details in locating a recycle facility nearest to you. Proper recycling and waste disposal will help conserve resources whilst preventing detrimental effects on our health and the environment.

CDs that cannot be used

CDs that are not round cannot be used.
CDs with coloring on the recording surface or CDs that are dirty cannot be used. This unit can only play the CDs with
The marking of products using lasers (Except for some areas)
. This unit may not correctly play discs which do not have the mark. You cannot play a CD-R or CD-RW that has not been finalized. (For the finalization process refer to your CD-R/CD-RW writing software, and your CD-R/CDRW recorder instruction manual.)

CLASS 1 LASER PRODUCT

The label is attached to the chassis/case and says that the component uses laser beams that have been classified as Class 1. It means that the unit is utilizing laser beams that are of a weaker class. There is no danger of hazardous radiation outside the unit.

General features

Release button VOL/Control knob

LOUD indicator

ATT indicator

Clock display

Turning ON the Power Press the [SRC] button.

Selecting the Source

Press the [SRC] button. Source required Tuner USB device (iPod*) CD External disc (Optional accessory) Auxiliary input* Auxiliary input (Optional accessory) Standby (Illumination only mode) Display "TUNER" "USB" ("iPod") "CD" "CD CH" "AUX" "AUX EXT" "STANDBY"

2 Enter Speaker Setting mode
3 Select the Audio Setup item to adjust
3 Select the Speaker type
Turn the [VOL] knob. Each time you turn the knob, the setting alternates between the settings shown in the table below. Speaker type OFF For 5 & 4 in. speaker For 6 & 6x9 in. speaker For the OEM speaker Display "SP OFF" "SP 5/4" "SP 6*9/6" "SP OEM"

4 Setup the Audio item

Turn the [VOL] knob. Adjustment Item Front High Pass Filter Rear High Pass Filter Low Pass Filter Subwoofer Phase Volume offset Loudness Display "HPF" "HPR" "LPF" "PHAS" "V-OFF" "LOUD" Range Through/80/100/120/ 150/180 Hz Through/80/100/120/ 150/180 Hz 60/80/120/Through Hz Reverse (180)/ Normal (0) (AUX: -8 +8) OFF/ON
4 Exit Speaker Setting mode
Volume offset: Sets each sources volume as a difference from the basic volume. Loudness: Compensates for low and high tones during low volume. (Only the low tone is compensated for when the tuner is selected as a source.)

Subwoofer Output

Turning the Subwoofer output ON or OFF. Push the Control knob toward down for at least 2 seconds. Each time you push the knob, Subwoofer output switches ON and OFF. When it is ON, "SW ON" is displayed.

5 Exit Audio Setup mode

Switching Display
Changing the information displayed.
If the selected display item does not have any information, alternative information is displayed. * When playing music from iPod, the folder name display may show something different such as playlist or artist name depending on the music selection procedure.
1 Enter Switching Display mode
Press the [DISP] button for at least 1 second. "DISP SEL" is displayed.
2 Select the Display item
Push the Control knob towards right or left.

In Tuner source

Information Program Service name or Frequency (FM) Radio text, Program Service name or Frequency (FM) Frequency (MW, LW) Clock Display "FREQ/PS" "R-TEXT" "FREQ" "CLOCK"
Theft Deterrent Faceplate
The faceplate of the unit can be detached and taken with you, helping to deter theft.
Removing the Faceplate Press the Release button. The faceplate unlocks, allowing you to detach it.
The faceplate is a precision piece of equipment and can be damaged by shocks or jolts. Keep the faceplate in its faceplate case while detached. Do not expose the faceplate (and the faceplate case) to direct sunlight or excessive heat or humidity. Also avoid places with too much dust or the possibility of water splashing.

In CD & External disc source
Information Disc title Track title Play time & Track number Clock Display "D-TITLE" "T-TITLE" "P-TIME" "CLOCK"
Reattaching the Faceplate In Audio file source
Information Music title & Artist name Album name & Artist name Folder name* File name Play time & Music number Clock Display "TITLE" "ALBUM" "FOLDER" "FILE" "P-TIME" "CLOCK"
1 Align the projections on the unit with the
grooves on the faceplate.

Projections Grooves

In Standby/ Auxiliary input source
Information Source name Clock Display "SRC NAME" "CLOCK"
2 Push the faceplate in until it clicks.
The faceplate is locked in place, allowing you to use the unit.
3 Exit Switching Display mode

Press the [DISP] button.

When the music number exceeds 1000, only the last 3 digits of its number are displayed. When you select the clock display, the display setting of each source will be changed to the clock display. Music title, Artist name, and Album name cannot be displayed in WAV file.

TEL Mute

The audio system automatically mutes when a call comes in.
When a call comes in "CALL" is displayed. The audio system pauses. Listening to the audio during a call Press the [SRC] button. The "CALL" display disappears and the audio system comes back ON. When the call ends Hang up the phone. The "CALL" display disappears and the audio system comes back ON.
To use the TEL Mute feature, you need to hook up the MUTE wire to your telephone using a commercial telephone accessory. Refer to <Connecting Wires to Terminals> (page 33).

Control knob

ST indicator

Band display

Frequency display

Preset station number

Tuning

Selecting the station.

Function of remote control

Direct Access Tuning

Entering the frequency and tuning.

1 Select tuner source

Press the [SRC] button. Select the "TUNER" display.

1 Select the band

PTY indicator

TI indicator

Traffic Information

Changing to traffic information automatically when a traffic bulletin starts even when you are not listening to the radio. Press the [TI] button. Each time you press the button, the Traffic information function turns ON and OFF. When traffic information is ON, "TI" indicator is ON. When a traffic information station is not being received the "TI" indicator blinks. When a traffic bulletin starts, "TRAFFIC" is displayed and the audio changes to traffic information.
Traffic information can be switched when it is on the Tuner Source. However, you cannot switch the Traffic information during reception of the Traffic bulletin switched from the source other than the Tuner.

Radio Text Scroll

Scrolling the displayed radio text. Push the Control knob toward up for at least 2 seconds.
During reception of an AM station when the Traffic Information function is turned ON, the frequency changes to an FM station. During reception of traffic information the adjusted volume is automatically remembered, and the next time the audio changes to traffic information, the volume automatically becomes the remembered volume.
When the <Display Illumination Control> (page 25) is set to OFF, the display may black out while scrolling.
Receiving other traffic information stations Push the Control knob towards [4] or [].

PTY (Program Type)

Selecting the Program Type and searching for a station.
Speech and Music include the Program type shown below. Music: No.12 17, Speech: No.3 11, 18 25, 31 You can put the Program Type in the [1] [6] button memory and for quick recall. Refer to the <Program Type preset> (page 15). You can change the display language. Refer to <Changing Language for PTY Function> (page 16).

1 Enter PTY mode

Press the [PTY] button. During PTY mode the "PTY" indicator is ON.
This function cannot be used during a traffic bulletin or AM reception.
3 Search for the selected Program Type station
Push the Control knob towards [4] or []. When you want to search for other stations, push [4] or [] of the Control knob again.
2 Select the Program Type
Push the Control knob towards up or down. Each time you push the knob, the Program Type alternates between program types shown in the table below. No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. Program Type Speech Music News Current Affairs Information Sport Education Drama Culture Science Varied Pop Music Rock Music Easy Listening Music Light Classical Serious Classical Other Music Weather Finance Childrens programs Social Affairs Religion Phone In Travel Leisure Jazz Music Country Music National Music Oldies Music Folk Music Documentary Display "SPEECH" "MUSIC" "NEWS" "AFFAIRS" "INFO" "SPORT" "EDUCATE" "DRAMA" "CULTURE" "SCIENCE" "VARIED" "POP M" "ROCK M" "EASY M" "LIGHT M" "CLASSICS" "OTHER M" "WEATHER" "FINANCE" "CHILDREN" "SOCIAL" "RELIGION" "PHONE IN" "TRAVEL" "LEISURE" "JAZZ" "COUNTRY" "NATION M" "OLDIES" "FOLK M" "DOCUMENT"

When the selected Program Type is not found, "NO PTY" is displayed. Select another Program Type.

4 Exit PTY mode

Press the [PTY] button.

Program Type Preset

Putting the Program Type in the Preset button memory and quick recall.
Presetting the Program Type
1 Select the Program Type to preset
Refer to <PTY (Program Type)> (page 15).
2 Preset the Program Type
Press the desired [1] [6] button for at least 2 seconds.
Recalling the preset Program Type
2 Recall the Program Type
Changing Language for PTY Function
Selecting the Program Type display language.
2 Enter Changing Language mode

Press the [TI] button.

3 Select the language
Push the Control knob towards up or down. Each time you push the knob, the language alternates between the languages shown in the table below. Language English French Swedish German Display "ENGLISH" "FRENCH" "SWEDISH" "GERMAN"
4 Exit Changing Language mode
CD/USB device/Audio file/External disc control features

Disc number

IN indicator

Track number

Play time
Playing CD & Audio file
When a disc is inserted Press the [SRC] button. Select the "CD" display.
When a CD is inserted, the "IN" indicator is ON.
Pause and play Press the [38] button. Each time you press the button, the audio pauses or plays. Eject the CD Press the [0] button.
For the audio files and discs you can play with this unit, refer to <About Audio file> (page 5). You can eject the disc for 10 minutes after switching off the engine.
Playing USB (iPod*) device
When the USB device is not connected
Connect the USB device Playback of the file contained in the USB device starts.

Drive Search

Selecting the device inserted in the Multi Card Reader.
1 Put the playback to pause
Press the [S.MODE] button.
When the USB device is connected
Select USB source Press the [SRC] button. Select the "USB" (or "iPod") display.

In Standby mode

Security Code
Activating the Security Code disables the usage of audio unit by someone else. Once the Security Code is activated, the entry of authorized Security Code is required to turn on the audio unit when it is removed from the vehicle. Indication of this Security Code activation prevents your precious audio unit from stealing.
Resetting the Security Code function when the audio unit is first used after removed from the battery power source or the Reset button is pressed
1 Turn the power ON. 2 Do the step 4 through 7 step operation, and
reenter the security code. "APPROVED" is displayed. Now, you can use the unit.
When you activate the Security Code function, it cannot be released. Note, your Security Code is the 4 digit number entered in your "Car Audio Passport" in this package.
If an incorrect code is entered, "WAITING" is displayed, and the input prohibition periods shown in the table below is generated. After the input prohibition time lapses, "CODE" is displayed, and you can reenter the code.

2 Enter Menu mode

Press the [MENU] button. When "MENU" is displayed, "CODE SET" is also displayed.
Number of times the incorrect code was input 3 4
Input prohibited time 5 minutes 1 hour 24 hours
3 Enter Security Code mode
Press the Control knob for at least 1 second. When "ENTER" is displayed, "CODE" is also displayed.
4 Select the digits to enter

Touch Sensor Tone

Setting the operation check sound (beep sound) ON/OFF. Display "BEEP ON" "BEEP OFF" Setting Beep is heard. Beep canceled.
5 Select the Security Code numbers
6 Repeat step 4 and 5, and complete the Security
7 Confirm the Security Code
Press the Control knob for at least 3 seconds. When "RE-ENTER" is displayed, "CODE" is also displayed.
8 Do the step 4 through 7 step operation, and

reenter the security code. "APPROVED" is displayed. The Security Code function activates.

Manual Clock Adjustment

If you enter a Code different from your Security Code, you have to start over from step 4.
You can do this adjustment when the <Synchronize Clock> (page 25) is set as OFF.
1 Select Clock Adjustment mode
Push the Control knob towards up or down. Select the "CLK ADJ" display.
9 Exit Security Code mode

Press the [MENU] button

2 Enter Clock Adjust mode
Press the Control knob for at least 1 second. The clock display blinks.
Display Illumination Control
This function turns off the display when you perform no operation for 5 seconds. This function is effective when you are driving at night. Display "DISP ON" "DISP OFF" Setting Keeps the display on. Turns off the display when you perform no operation for 5 seconds.

3 Adjust the hours

Push the Control knob towards up or down. Adjust the minutes Push the Control knob towards right or left.
4 Exit Clock adjustment mode
Set the Display Illumination Control when the <Demonstration mode Setting> (page 29) is set to OFF. When the display is off, pressing any key will turn on the display. When the display is off, you cannot perform any operation except for the following: Volume Attenuator Selecting the source Ejecting the disc Turning off the power During function control, such as the Menu System, the display stays on.

Synchronize Clock

Synchronizing the RDS station time data and this units clock. Display "SYNC ON" "SYNC OFF" Setting Synchronizes the time. Adjust the time manually.
It takes 3 to 4 minutes to synchronize the clock.

Dimmer

DSI (Disabled System Indicator)
A red indicator will blink on the unit after the faceplate is removed, warning potential thieves. Display "DSI ON" "DSI OFF" Setting LED flashes. LED OFF.
Dimming this units display automatically when the vehicle light switch is turned ON. Display "DIM AUTO" "DIM OFF" Setting The display dims. The display doesnt dim.
Function of KDC-W4737U/KDC-W4737UY

Selectable Illumination

Selecting the button illumination color as green or red. Display "KEY RED" "KEY GRN" Setting The illumination color is red. The illumination color is green. English |

Switching Preout

Alternating the preout between the rear and subwoofer. (With the subwoofer the sound outputs without being effected by fader control.) Display "SWPRE R" "SWPRE SW" Setting Rear preout. Subwoofer preout.

When you set "NEWS 00M" "NEWS 90M", the News Bulletin Interrupt function is ON. When the news bulletin starts, "NEWS" is displayed, and the tuner changes to the news bulletin.
If you choose the "20M" setting, further news bulletins will not be received for 20 minutes once the first news bulletin is received. The news bulletin volume is the same level that was set for <Traffic Information> (page 14). This news bulletin function is only available if the desired station sends PTY-code for news bulletin or belongs to <Enhanced Other Network>-Network sending PTY-code for news bulletin. When the News Bulletin Interrupt function is ON, the tuner changes to an FM station.

Supreme Setting

When AAC, MP3 or WMA files encoded at a low bit rate (less than 96kbps (fs=44.1k, 48kHz)) are played, this function restores their high frequency region to approach the sound quality of equivalents of these files encoded at a high bit rate. Processing is optimized for the compression format used (AAC, MP3, or WMA), and adjustment is made for the bit rate used. Display "SPRM ON" "SPRM OFF" Setting Plays sound using the Supreme function. Plays the original sound stored in the audio file.

In Tuner mode

Local Seek
Only stations whose reception is good are searched in auto seek tuning. Display "LO.S OFF" "LO.S ON" Setting The local seek function is OFF. The local seek function is ON.
The sound effect may be imperceptible depending on the relationship between the audio file format and setting. This function is not available on iPod.

Tuning Mode

Sets the tuning mode. Tuning mode Auto seek Preset station seek Manual Display "AUTO 1" "AUTO 2" "MANUAL" Operation Automatic search for a station. Search in order of the stations in the Preset memory. Normal manual tuning control.
News Bulletin with Timeout Setting
The tuner automatically changes when a news bulletin starts even if the radio is not being listened to. Also, you can set the time interval when interruption is prohibited. Display and Setting "NEWS OFF" "NEWS 00M" "NEWS 90M"
AF (Alternative Frequency)
When the reception is poor, automatically alternate to another frequency broadcasting the same program in the same RDS network with better reception. Display "AF ON" "AF OFF" Setting The AF function is ON. The AF function is OFF.

In FM reception

Monaural Reception
You can reduce the noise when stereo broadcasts are received as monaural. Display "MONO OFF" "MONO ON" Setting The monaural reception is OFF. The monaural reception is ON.
When the AF function is ON, the "RDS" indicator is ON.

When no other stations with stronger reception are available for the same program in the RDS network, you may hear the incoming broadcast in bits and snatches. Turn OFF the AF function in such a case.
Restricting RDS Region (Region Restrict Function)
You can choose whether or not to restrict the RDS channels, received with the AF function for a particular network, to a specific region. Display "REG ON" "REG OFF" Setting The Region Restrict Function is ON. The Region Restrict Function is OFF.
If AF function is not restricted to the specified region and network, the AF function sets up to search the station with good reception in the same RDS network.

Auto TP Seek

When the TI function is ON and the reception is poor while listening to a traffic information station, another traffic information station with better reception will be searched for automatically. Display "ATPS ON" "ATPS OFF" Setting The Auto TP Seek Function is ON. The Auto TP Seek Function is OFF. English |
Auxiliary Input Display Setting
Selecting the display when alternating to Auxiliary input source.
Function of KDC-W4737UY/KDC-W4537UY In Standby mode
Selecting Russian Characters
Setting up the display of Russian characters and undistinguishable English characters. Display "RUS ON" "RUS OFF" Setting Displays texts using Russian characters. Displays texts using European characters.
1 Select Auxiliary input source
Press the [SRC] button. Select the "AUX"/"AUX EXT" display.
Texts displayed using Russian characters are as follows. - Folder name/ File name/ Music title/ Artist name/ Album name - CD text (internal CD source) Texts cannot distinguish upper case and lower case in Russian characters.
3 Select Auxiliary input display setting mode
Push the Control knob towards up or down. Select the "NAME SET" display.
4 Enter Auxiliary input display setting mode
Press the Control knob for at least 1 second. The selected Auxiliary input display is displayed.
5 Select the Auxiliary input display
Push the Control knob towards right or left. Each time you push the knob, the display alternates as listed below. "AUX"/"AUX EXT" "DVD" "PORTABLE" "GAME" "VIDEO" "TV"
6 Exit Auxiliary input display setting mode

Text Scroll

Setting the displayed text scroll. Display "SCL MANU" "SCL AUTO" Setting Doesnt scroll. Scrolls when the display changes.
When operation stops for 10 seconds, the name at that time is registered, and the Auxiliary input display setting mode closes. You can only set the Auxiliary input display when the built-in auxiliary input or the auxiliary input of optional KCA-S220A is used.

Basic Operations

[VOL] buttons Adjusts the volume. [SRC] button Each time you press the button, the source alternates. For the source alternating order refer to <Selecting the Source> (page 7). [ATT] button Turns the volume down quickly. When the button is pressed again, the volume returns to the previous level.
Store unused batteries out of the reach of children. Contact a doctor immediately if the battery is accidentally swallowed.
Do not set the remote control in hot places such as on the dashboard.

Audio Control

[AUD] button Selects the Audio item to be adjusted. [VOL] buttons Adjusts the Audio item.

In Disc/USB Source

[4]/ [] buttons Going forwards and backwards between music. [+]/ [] buttons Going forwards and backwards between disc/ folders. [38] button Each time you press the button, the music is played or paused. [0] [9] buttons When in <Direct Music Search> (page 19) and <Direct Disc Search> (page 19), enters the music/ disc number.
Refer to <Audio Control> (page 8) for the operation method, such as the procedures for Audio control and others operations.

In Tuner Source

[FM]/ [AM] buttons Selects the band. Each time you press the [FM] button, the band alternates between the FM1, FM2, and FM3 bands. [4]/ [] buttons Tune up or down band. [0] [9] buttons Press buttons [1] [6] to recall preset stations. [DIRECT] button Enters and cancels the <Direct Access Tuning> (page 12) mode. [38] button Enters and cancels the <PTY (Program Type)> (page 15) mode.
Accessories/ Installation Procedure
Accessories 1..1 2..2 3..1 Installation Procedure
1. To prevent short circuits, remove the key from the ignition and disconnect the - terminal of the battery. 2. Make the proper input and output wire connections for each unit. 3. Connect the wire on the wiring harness. 4. Take Connector B on the wiring harness and connect it to the speaker connector in your vehicle. 5. Take Connector A on the wiring harness and connect it to the external power connector on your vehicle. 6. Connect the wiring harness connector to the unit. 7. Install the unit in your car. 8. Reconnect the - terminal of the battery. 9. Press the reset button.

TEL mute wire (Brown)

Connect to the terminal that is grounded when either the telephone rings or during conversation.
If no connections are made, do not let the wire come out from the tab. Power control/Motor antenna control wire (Blue/White)
To connect the Kenwood navigation system, consult your navigation manual.
Connect either to the power control terminal when using the optional power amplifier, or to the antenna control terminal in the vehicle.
Battery wire (Yellow) Ignition wire (Red)

See next page

A7 Pin (Red) A4 Pin (Yellow)

Connector A Connector B

Connector Function Guide
Pin Numbers for ISO Connectors External Power Connector A-4 A-5 A-6 A-7 A-8 Speaker Connector B-1 B-2 B-3 B-4 B-5 B-6 B-7 B-8 Cable Colour Functions
2WARNING Connecting the ISO Connector
The pin arrangement for the ISO connectors depends on the type of vehicle you drive. Make sure to make the proper connections to prevent damage to the unit. The default connection for the wiring harness is described in 1 below. If the ISO connector pins are set as described in 2 or 3, make the connection as illustrated. Please be sure to reconnect the cable as shown 2 below to install this unit to the Volkswagen vehicles etc.
Yellow Blue/White Orange/White Red Black
Battery Power Control Dimmer Ignition (ACC) Earth (Ground) Connection
Purple Purple/Black Gray Gray/Black White White/Black Green Green/Black
Rear Right (+) Rear Right () Front Right (+) Front Right () Front Left (+) Front Left () Rear Left (+) Rear Left ()
1 (Default setting) The A-7 pin (red) of the vehicles ISO connector is linked with the ignition, and the A4 pin (yellow) is connected to the constant power supply.
Ignition cable (Red) Unit Battery cable (Yellow) A-7 Pin (Red) Vehicle A-4 Pin (Yellow)
2 The A-7 pin (red) of the vehicles ISO connector is connected to the constant power supply, and the A-4 pin (yellow) is linked to the ignition.
3 The A-4 pin (yellow) of the vehicles ISO connector is not connected to anything, while the A-7 pin (red) is connected to the constant power supply (or both the A-7 (red) and A-4 (yellow) pins are connected to the constant power supply).

When the connection is made as in 3 above, the units power will not be linked to the ignition key. For that reason, always make sure to turn off the units power when the ignition is turned off. To link the units power to the ignition, connect the ignition cable (ACC.red) to a power source that can be turned on and off with the ignition key.
Installation/Removing the Unit

Installation

Metal mounting strap (commercially available) Firewall or metal support
Removing the Unit 1 Refer to the section <Removing the hard rubber
frame> and then remove the hard rubber frame.
2 Remove the screw (M4 8) on the back panel. 3 Insert the two removal tools deeply into the slots

on each side, as shown.

4 Lower the removal tool toward the bottom, and
pull out the unit halfway while pressing towards the inside.
Screw (M4X8) (commercially available) Accessory2
Bend the tabs of the mounting sleeve with a screwdriver or similar utensil and attach it in place. Self-tapping screw (commercially available) Screw (M4X8) (commercially available)
Make sure that the unit is installed securely in place. If the unit is unstable, it may malfunction (for example, the sound may skip).
Be careful to avoid injury from the catch pins on the removal tool.
Removing the hard rubber frame 1 Engage the catch pins on the removal tool and
remove the two locks on the upper level. Upper the frame and pull it forward as shown in the figure.
5 Pull the unit all the way out with your hands, being

careful not to drop it.

Lock Catch

Accessory2 Removal tool

2 When the upper level is removed, remove the

lower two locations.

The frame can be removed from the bottom side in the same manner.

Troubleshooting Guide

Some functions of this unit may be disabled by some settings made on this unit. What might seem to be a malfunction in your unit may just be the result of slight misoperation or miswiring. Before calling service, first check the following table for possible problems.