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DISCUSSION => General Topics => Topic started by: dlmrun2002 on July 14, 2007, 04:32:56 PM

Title: Looking for Stereo wire codes
Post by: dlmrun2002 on July 14, 2007, 04:32:56 PM

Any one have a schematic and or block diagram with wire colors on the stereo system?  Thanks.....

DLM

Title: Looking for Stereo wire codes
Post by: FL318is on July 14, 2007, 08:12:17 PM

Have you looked here?

http://www.m42club.com/forums/showthread.php?t=17

Title: Thanks
Post by: dlmrun2002 on July 14, 2007, 08:54:31 PM

That helps a  little.
DLM

Title: Looking for Stereo wire codes
Post by: jpod999 on July 15, 2007, 12:43:49 AM

Color codes;
Power wiringBrown = Ground, normally black in most cars
White = Antenae (sends 12v to raise the ant. when stero is in radio mode)
Purple = 12v ACC (Switched) Can also be red.
Red/Green = 12v constant (Non-Switched) Can also be yellow on some cars.
Red/Gray = Illumination (sends 12v when headlights are on to activate dimmer) Could also be orange.

Speaker wiring
Right Front = Blue and:
White = Pos.
Red = Neg.

Left Front = Yellow and:
Silver (or gray) = Pos.
Red = Neg.

Right Rear = Blue and:
Brown = Pos.
Black = Neg.

Left Rear = yellow and:
Brown = Pos.
Black = Neg.

Title: Looking for Stereo wire codes
Post by: dlmrun2002 on July 15, 2007, 08:51:42 AM

Well..  WTF???  This is what  I  found. And I did a continuity check on all wires.
Lt tweeter- grey/yellow & grey/green
Lt woofer---yellow/red  & yellow/ grey
rt tweeter--yellow/grey & green/grey
rt woofer-- blue/grey   & red/ grey

Don't need the backs..

Oddly enough the left tweeter and woofer share grey and yellow. But  the tweeter is really  grey with a thin yellow  stripe  and the woofer is more yellow  with a grey stripe.  Either case, this is all adds up to a big case of squat. I'm getting ready to install  Focals up front and wanted to use the existing  wires near  the mirrors   for the tweeters. BMW  used  common ground on e30 stereos which is not "new head unit friendly".

DLM

Title: Looking for Stereo wire codes
Post by: Vladi on July 15, 2007, 10:31:24 AM

Quote from: dlmrun2002;29663

BMW  used  common ground on e30 stereos which is not "new head unit friendly".DLM

Why? :confused:

Title: Looking for Stereo wire codes
Post by: dlmrun2002 on July 15, 2007, 08:08:31 PM

TYPO mistake
rt woofer-- blue/grey & blue/red   NOT blue/grey & red/ grey
Got the Focals in...