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04-01-18, 03:09 PM | #1 | |
Grown up member
Join Date: Sep 2012
Location: Ripon, North Yorkshire
Posts: 59
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Radio wiring diagram.
So I've gone to swap the cassette player Apline headunit in my '87 coupe for a new one and the old one has been spliced into the cars wiring. I've ordered an ISO loom/socket but the diagram in the Haynes manual is sadly lacking as a useful wiring diagram. Does anyone have a better wiring diagram or failing that colour code pinouts? I will take a switched live fm the lighter cct as well, sick of having to remember to turn the radio off.
Cheers Jase. |
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04-01-18, 03:57 PM | #2 |
4 ring whore!
Classic Audi Club Member
Join Date: Nov 2007
Location: Polmont
Posts: 2,617
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The wiring is usually fairly standard for most Audis of that age
brown - earth white - 12v grey / blue - backlighting blue / red - clock your speaker wires will be in another group and they're usually black / green or black / white Do not under any circumstances use a blue / white wire - that is for the vehicle speed and should never be used for the stereo.
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1991 90 quattro 20v sport 1991 90 quattro |
04-01-18, 07:11 PM | #3 |
4 ring whore!
Join Date: Jun 2008
Location: Rucava, Latvija
Posts: 3,816
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Well, but what if he is going to use normal stereo with GALA function? That's why that particular wire is there, and it is in ISO plug as well.
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04-01-18, 07:17 PM | #4 |
4 ring whore!
Join Date: Jun 2008
Location: Rucava, Latvija
Posts: 3,816
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does "87 coupe" means B2 coupe? If that would be B3, then "key in ignition" signal could be taken from ignition switch - no idea if B2 have such contact in ignition switch, althought I have some doubts...
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04-01-18, 07:55 PM | #5 |
Grown up member
Join Date: Sep 2012
Location: Ripon, North Yorkshire
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04-01-18, 07:57 PM | #6 | |
Grown up member
Join Date: Sep 2012
Location: Ripon, North Yorkshire
Posts: 59
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Quote:
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05-01-18, 01:22 PM | #7 |
4 ring whore!
Classic Audi Club Member
Join Date: Nov 2007
Location: Polmont
Posts: 2,617
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That will be the back light wire which will dim the display.
The blue / white wire is for the vehicle electrics - it's completely independent of the radio circuit
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1991 90 quattro 20v sport 1991 90 quattro |
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