Question about 1991 Volkswagen Passat

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Need Stereo Wiring Diagram

Bought a 1991 Volkswagen Passat Gl stereo was ripped out and wires cut trying to figure out what each wire is

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  • tnikolich May 23, 2009

    Every wirind diagram ive viewed does not match, I have 13 wires coming from my dash.
    Red/White(12v)
    Brown(ground)
    White/Blue    These three wires are on one harness


    Red/White-thick(12v)
    Gray
    Green
    Blue
    Blue/Red
    Red/Black-thick
    Red/Black
    Blue/Brown
    Brown/Red
    Blue/White

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Red/white is the battery 12volts
brown is ground
white/blue or gray/white is interior (dash) light
on the others get a volt ohm meter and check the resistant between each wire, to an the others if it moves then there maybe a speaker but keep checking because there could have two speakers using the some ground, if you are putting a high power radio in each speaker needs its own ground. the safety way is put new wires for the speakers.


Posted on May 23, 2009

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Here is a link listing all the colors/wires for your 91 Passat. Good Luck!
Greg
http://www.the12volt.com/installbay/stereodetail/2195.html

Posted on May 23, 2009

  • Greg Margossian
    Greg Margossian May 23, 2009

    just compared what I gave with another site I use, same layout. Sounds like someone put their own wiring harness on the stereo that was ripped out. (most likely was an after market unit) Best of luck.

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For more help on car radio problems, I suggest you to go through these troubleshooting links, these will help you: -----

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http://schematicsdiagram.blogspot.in/2012/03/vw-passat-radio-off-safe-mode-vw-radio.html

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--------------

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-------------

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For more help on car radio problems, I suggest you to go through these troubleshooting links, these will help you: -----

Click the link below: ---

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http://whoisbyme.blogspot.in/2012/07/cigarette-lighter-remote-central.html

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http://schematicsdiagram.blogspot.in/2012/03/vw-passat-radio-off-safe-mode-vw-radio.html

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How to wire new Radio on 1990 Toyota Celica?

http://schematicsdiagram.blogspot.com/2011/12/how-to-wire-new-radio-on-1990-toyota.html

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http://schematicsdiagram.blogspot.com/2011/12/radio-stereo-wiring-diagram-for-1991.html

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http://repairhelpcenter.blogspot.com/2011/11/how-to-remove-radio-on-acura-car-models.html

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http://schematicsdiagram.blogspot.com/2011/12/where-is-radio-fuse-located-on-2007.html

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http://howtobyme.blogspot.com/2011/12/how-to-reset-radio-code-after-car.html

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http://schematicsdiagram.blogspot.com/2011/12/can-car-radio-code-block-passkey-anti.html


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http://schematicsdiagram.blogspot.com/2011/12/after-market-stereo-wiring-for-1999.html

---------

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http://schematicsdiagram.blogspot.com/2012/01/chevy-car-radio-doesnt-allow-to-switch.html

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http://repairhelpcenter.blogspot.com/2012/01/no-power-to-radio-on-2005-toyota-scion.html

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http://repairhelpcenter.blogspot.com/2012/01/lexus-rx330-radio-has-power-but-no.html

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http://technoanswers.blogspot.com/2012/01/radio-goes-on-and-off-while-driving.html

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1991 vw passat 9A 16v 2l B Charging and instrument cluster problem One day car did not start-turn key and nothing at all.(no power to inst. cluster no turning, nothing) One hour later it did turned on and cranked. and run fine. Next day repeated.Battery was dead.When jumped jumper cable melted.The alternator was shorting. Replaced battery and alternator. But alternator is not charging.Alternator tested as good.Replaced anyway, for another alternator that also tested as good just for the heck of it. Still not charging and whole instrument cluster and radio have no power from the very first replacement repair till now. Car will run just fine with out other el. problems as far the battery have charge above 6-7 v. I checked fuses in fuse/relay panel.Did not see any fuse burned. Is there fusible link on charging system or other fuse or relays to check besides the ones on the fuse/relay panel? I there relay that control this? I know that is grounded good. I know that is connected to + battery good. Alt+battery good. There is small blue wire running from alternator?????? called the alt. control wire. I think is says d+ or something on the alt.terminal next to it. It seems that something prevents the alternator to output power. I measured the alt. terminal + and ground when connected and running and all I read is the battery voltage dropping. I think the blue small wire and instrument cluster are close connection to this problem. Unless there is fuse or relay that I missed to check. other possibilities- ECU. -Wiring harness. First- where is all the fuses? and relays to check? fusible links? second -what is the blue wire ? third-instrument cluster involved? keep in mind that everything works besides inst cluster and charging when battery have charge above 6-7v. This car have disconnected and missing ABS and Security . Run grate for about a year till this happened. Rebuilded engine....Clean well maintained.. u4davidatgmaildotcom

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1991 Volkswagen Passat Logo

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