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E46 M3 (2001-2006)

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Old 01-11-2007, 11:07 PM
neejkoob neejkoob is offline
Registered User
Location: Midwest
Join Date: Jan 2007
Posts: 3
Mein Auto: M3
Need HELP with business CD radio

Idiot previous owner of my 2003 M3 cut the factory harness...I am trying to put the wires back together.

The colors of the wires coming from the radio harness does not match the color of the wires coming from the dash???

(you can click on image to get a bigger picture)

Also the radio harness is missing some pins (I-Bus pin is missing...thus radio says "DISABLE")? Don't know where previous owner got this radio harness?

I pretty much cut the wires apart and tried to de-code what every wire means...

As you can see there are a couple wires I am not sure of...

1) The white - red stripe with yellow dashes wire...Is this the Hot (+) at all time?

2) The purple - white stripe wire...Is this the Hot (+) acc or ignition?

3) The thick red - green strip wire...not sure what this is for?

4) There are two thinner white and the other black...not sure what these are for?

There are 16 pins in the radio (17th pin is not used) and 16 wires coming from the dash (at least this adds up)...but colors and sizes don't match with the harness wires from radio?

Please brother M3 owners...could someone tell me the meaning of these wires from the dash...I already know which radio pin does what...just can't match it to the cars wires?

Any help would be greatly appreciated

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