NEED STEREO WIRERING COLOR SCHEME FOR BMW 2015 328i xdrive sport line package
I need to know what are each of the wires that goes
from the stereo to the amp in the back. I want to put
a subwoofer in using my own amp but I cannot find
anywhere on the web what each wires are and
BMW told me i had to pay 140$ just to find out even
though I have a waranty.