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98 s90 stereo wiring diagrams don't match up

Help, Advice, Owners' Discussion and DIY Tutorials on all Volvo's "mid era" rear wheel drive Volvos.

1975 - 1993 240
1983 - 1992 740
1982 - 1991 760
1986 - 1991 780
1990 - 1998 940
1990 - 1998 960
1997 - 1998 V90/S90

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codywansley
Posts: 2
Joined: 8 May 2013
Year and Model: 1998 s90
Location: United States

98 s90 stereo wiring diagrams don't match up

Post by codywansley »

I've looked everywhere for a diagram to put in a custom radio on my volvo, the ones I've found are all the same so I figure they must be legit, but when I went to look at the wires on my car...none of them matched!(well except for the red wire was there) but absolutely none of the wiring matched up to the diagram. this is the diagram i looked at in case yall want to know
so far this has been the most problematic car when it comes to finding out information and it's getting on my nerves.

Car Radio Battery Constant 12v+ Wire: Yellow
Car Radio Accessory Switched 12v+ Wire: Red
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Light Orange
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 6 1/2″ Speakers
Car Audio Front Speakers Location: Doors
Left Front Speaker Positive Wire (+): Blue/Yellow
Left Front Speaker Negative Wire (-): White
Right Front Speaker Positive Wire (+): Gray/White
Right Front Speaker Negative Wire (-): Gray
Car Audio Rear Speakers Size: 6″ x 9″ Speakers
Car Audio Rear Speakers Location: Rear Deck
Left Rear Speaker Positive Wire (+): Yellow/Brown
Left Rear Speaker Negative Wire (-): Yellow/Green
Right Rear Speaker Positive Wire (+): Green/Brown
Right Rear Speaker Negative Wire (-): Green

lindy8_man
Posts: 126
Joined: 29 November 2009
Year and Model: 1998 S90
Location: San Diego

Post by lindy8_man »

Did you go with a wiring harness? Here is Amazons: https://www.amazon.com/Stereo-Harness-Vo ... ng+harness

I know VOlvo has one for this purpose. I would probably go with theirs. I plan to put a nav unit in mine next year.
Beer and DIY Volvo Repairs are proof that God loves us and wants us to be happy.

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