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1986 240 Radio/Cassette wiring, installing a new stereo, color codes for wiring? 200

posted by  mkoch on  Sun Jun 24 21:14 CST 2012
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last visit: Sat Sep 13 18:04 CST 2014
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I am installing a new to me stereo in my 1986 240.
http://img.photobucket.com/albums/v493/weimadog/volvo/Photo-0571.jpg

The oem radio's wiring harness plugged into the car's wiring harness, pictured above. (The disembodied plug is from a car I'm disassembling. The wire colors and the plug in the picture are identical to the one on the car I am installing the stereo in)

Looking at the plug from the side with the wires, not the way it's pictured



Red- Probably went to an antenna motor
Yellow/Black Hot when the ignition is on
Green Always hot

(middle row)
Empty space
Yellow/White Has resistance only with Gray
White/Yellow unknown

(bottom row)
Black- thicker than the rest, probably a ground
Gray- Has resistance only with Yellow/White
White- unknown

Yellow/White and Gray go to the right speaker.

Should White/Yellow and White go to the left speaker? There is no resistance between them, so if they should, it looks like my speaker could be broken.

The factory wiring diagram is of no help.

mkoch

White/Yellow and White







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