i thought that puting in a new head unit would be easy but after trial and error im left wondering how do i match up the wires? i have a pioneer head unit and im trying to install it in my 1986 bmw 325 im lost if anyone could help it would be greatly appreciated

OK.

BMW installed a radio with a funny way of powering the speakers with a fader switch.

You will need to run new wires to the speakers.

Here is a diagram of the OE wiring. This is an e24 so the fuses are different but wire colors are the same.

http://members.roadfly.com/kcroncarter/etm154.htm
http://members.roadfly.com/kcroncarter/bmwetm154.jpg

Later,