volvo 2002 s40 wiring diagram problem

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=122293
Printed Date: September 10, 2025 at 8:21 AM

Topic: volvo 2002 s40 wiring diagram problem

Posted By: cporter
Subject: volvo 2002 s40 wiring diagram problem
Date Posted: June 14, 2010 at 7:35 AM

Hey all, Was putting in a after market radio and it seems my harness for the S40 is wrong. I ordered the right year and all but I do not have these hook ups in my factory radio. All I really need is the a corret wiring diagram for my car. I looked online but everyone I seems to find is wrong. My speakers are all connected I just need the colors of the other wires.

I was also thinking that the harness looks more like one for the S60?

Any help is much appeaciated!

Thanks!

Replies:

Posted By: topinstaller200
Date Posted: June 14, 2010 at 8:25 PM

what other wires do you need? If you already found all the speaker wires then you should only really need 12V+, ACC, and ground

Battery	YELLOW	(+)	RADIO HARNESS
Accesory	RED	(+)	RADIO HARNESS
Ground	BLACK	(-)	RADIO HARNESS
Illumination	LIGHT ORANGE	(+)	RADIO HARNESS
LF Speaker (+)	DARK ORANGE
LF Speaker (-)	BLACK
RF Speaker (+)	RED
RF Speaker (-)	BLACK
LR Speaker (+)	YELLOW/BROWN
LR Speaker (-)	BROWN
RR Speaker (+)	YELLOW/BLACK
RR Speaker (-)	BLACK
Steering Cntrls	NO
Speed Cntrl	NO
Radio Security	YES

Is this what you needed?

Posted By: cporter
Date Posted: June 15, 2010 at 1:21 PM

I will double check again here soon to make sure! Thanks for the info! As of right now the dash lights and radio stay on after the car is off. Now hopefully I can get the right colors in the right places!

Posted By: cporter
Date Posted: June 15, 2010 at 9:40 PM

Ok so here are the wire color were having trouble with

We have a large Orange and a black that we think is the consent and the ground

The rest are all the same size

Red, BLACK/ red, Yellow, red, black, blue/white

We had it all working right but now the dash and radio stay on forever!

Thanks again!