Speaker Wire Colors
 

In the factory harnesses on the inside of the doors where the wires enter the car what color are + and - speaker wires and are they the same for all four doors? Thanks for your help

Look at the speakers themselves. There is a small + embossed on the terminal to signify which one the positive lead is on each speaker.

Didn't want to take the doors apart but I pulled the HU out and looked at the back of the factory harness. I'm good now