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1999-2004 Volvo C70 Conv Stereo Wires?

Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=32678
Printed Date: May 09, 2025 at 6:45 AM


Topic: 1999-2004 Volvo C70 Conv Stereo Wires?

Posted By: GalpinAudio
Subject: 1999-2004 Volvo C70 Conv Stereo Wires?
Date Posted: May 24, 2004 at 6:19 PM

I've got a 2004 Volvo C70 which I'm going to attempt installing a Pioneer Avic-N1 all in one am/fm/cd/dvd/navigation unit in.  I know this vehicle has not changed since 1999, and I know it has dolby surround w/center channel and a factory amplifier.  Has anyone done an aftermarket unit in one of these yet and if so any info such as wire colors, adapters, bypasses, etc would be greatly appreciated.  I called Metra and they were no help. 

Thanks,

Matthew



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Never Let Those Who Say It Cant Be Done Stand In The Way While You Do It!



Replies:

Posted By: jfk51502003
Date Posted: May 28, 2004 at 4:17 PM
DIRECTWIRE™ WIRING INFORMATION - VOLVO / C70 / 2003 / Audio

[PRINT THIS PAGE]

Radio 12vRED / black + radio harness
Radio Groundblack - radio harness
Radio Ignitionyellow/purple + radio harness
Radio Illumination
Factory Amp Turn-on
Power Antennablue/white or blue / YELLOW + radio harness
LF Speaker +/-
RF Speaker +/-
LR Speaker +/-
RR Speaker +/-
posted_image
Immobilizer Bypass Module:Required: YesType: TransponderPart #: 555U
Notes: N/A


posted_image
This wiring information is being provided free of charge on an "as is" basis, without any representation or warranty. It is your responsibility to verify any circuit before interfacing with it using a digital multimeter.
Directed electronics, Inc. assumes no responsibility with regards to the accuracy or currency of this information. Proper installation in every case is and remains the responsibility of the installer. DEI assumes no liability or responsibility resulting from improper installation, even in reliance upon this information.
DIRECTWIRE™ WIRING INFORMATION - VOLVO / C70 / 2003 / Remote Start

[PRINT THIS PAGE]

12voltsred (10A) + ignition harness
Notes: This wire is rated at 10 amps only. If installing any system with high current outputs, go to battery for 12V.
Starteryellow/white + ignition harness
Second Starter
IgnitionGREEN/ YELLOW + ignition harness
Second Ignitionblue / YELLOW + ignition harness
Third Ignition
Accessoryyellow/purple 5wiignition harness
Second Accessory
Keysenseyellow (required) + ignition harness
Power Lockyellow/gray - keyless module
Notes: The keyless entry module is located above the hood release. It is a black box with 2 green plugs.
Power Unlockgray/red - keyless module
Notes: The keyless entry module is located above the hood release. It is a black box with 2 green plugs.

Requires a double pulse for unlock.
Lock Motoryellow 5widriver kick, door harness
Unlock Motorblue/brown 5widriver kick, door harness
Parking Lights+white + headlight switch
Notes: If the vehicle has factory daytime running lights, and you use the white at the switch for parking lights, the headlights will flash as well. The solution is to wire it as a 5 wire system. Also, there are two white wires at the switch. They go to the same pin. Treat them like one wire.
Parking Lights-
Hazards
Turn Signal(L)
Turn Signal(R)
Reverse Light
Door Triggerpink/black - keyless module
Notes: The keyless entry module is located above the hood release. It is a black box with 2 green plugs.

To avoid the dome light delay, there are 2 separate door trigger wires at the keyless module. They are: LF WHITE/ black, RF yellow/brown. Both wires are negative trigger and must be diode isolated from each other.
Dome Supervisioncomes on with unlock
Trunk/Hatch Pinblue/brown - keyless module
Notes: The keyless entry module is located above the hood release. It is a black box with 2 green plugs.
Hood Pinyellow/black - keyless module
Notes: The keyless entry module is located above the hood release. It is a black box with 2 green plugs.
Trunk/Hatch Releaseyellow/white - keyless module
Notes: The keyless entry module is located above the hood release. It is a black box with 2 green plugs.
Power Sliding Door
Factory Alarm Armarms with lock
Factory Alarm Disarmdisarms with unlock
Disarm No Unlocksingle pulse unlock wire
TachometerNOT red, black, or yellow ac any ignition coil
Wait to start
Brake Wireyellow + brake pedal switch
Parking Brake
Horn Triggeryellow/red - keyless module
Notes: The keyless entry module is located above the hood release. It is a black box with 2 green plugs.

This triggers the alarm horn, the vehicle horns only work with the ignition on.
Memory Seat 1
Memory Seat 2
Memory Seat 3
posted_image
Immobilizer Bypass Module:Required: YesType: TransponderPart #: 555U
Notes: N/A


This wiring information is being provided free of charge on an "as is" basis, without any representation or warranty. It is your responsibility to verify any circuit before interfacing with it using a digital multimeter.
Directed electronics, Inc. assumes no responsibility with regards to the accuracy or currency of this information. Proper installation in every case is and remains the responsibility of the installer. DEI assumes no liability or responsibility resulting from improper installation, even in reliance upon this information.



Posted By: GalpinAudio
Date Posted: June 02, 2004 at 9:58 AM

Thanks for the direct info, but unfortunately all it tells is constant, acc, and ant.  My partner and I got the rest figured out though.

For anyone out there in need of the info it is as follows:

12V constant - RED / Black

12V acc - Yellow/Violet

Ground - Black

Power Ant - Blue / YELLOW

VSS - Yellow/Black

Center Channel  + Pos - Blue/White

Center Channel - Neg - Blue/Black

There is a factory amplifier in the trunck on the drivers side.  There are 3 din cables going to the back of the radio.  One is the CD Changer, one is the dolby processor, and one is the Amp.  You will need to use the din cable that goes to the amp.  Figure out which one it is and cut it behind the radio.  You will need 4 RCA ends to solder onto the cut din plug. 

The wire colors are as follows:

Blue - Not Used

Grey - Remote turn on

Purple - Right Rear +

Green - Left Rear +

Red - Right Front +

White - Left Front +

The shields are the grounds and must all be combined together as common ground system.

Hope this helps anyone else out there who gets one of these beasts.

Good Luck



-------------
Never Let Those Who Say It Cant Be Done Stand In The Way While You Do It!


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