Any Auto Zone, Advanced Auto Parts, or NAPA should do. If the wire harness is proprietary, and exclusive to that make and model of car, you might want to check a salvage yard.
Edit: I just saw it said "diagram". If a GM dealer is unable to provide this for you, the Chilton's manuals sold at any of the aforementioned auto parts stores should include one.
ebay-mercury milan
in a reference manual at your local library
good luck trying tio find one
get a wiring diagram-- they are everywhere online
I would like to find a diagram for the car radio speaker wires on a 2000 ford explorer
go to wal mart and get the wire harness it will tell you what goes where.
Cheapest and easiest way is to buy the stereo wire harness for your year and model at Walmart for $7 bucks. You can use that to determine which wire is which. If your harness was cut off at the car wires, and you no longer have the harness then of course it will do you no good.
wiring wire harness cooling sistems ford focus 2002
the dealership for that brand of car
send message to ake1ro@yahoo.gr and you got it!!!!!!
need a color wire schematic for main wire harness
you can get it at any car audio store. check around your area and youll find one.