One question:

I had my headunit installed by a car stereo shop in the middle of a 4600 mile road trip because... well because I was in the middle of a road trip and had no tools.

Anyhow, they bypassed the factory amp for me, so now I've got a bundle of wires tied together at the factory amp location, and I'm not sure which is which. I've tried looking at the radio module and amp wiring diagram post, but i'm still confused.

I have white/brown and white/black wires, and I'm not sure what they go to. I cut one connection, to see if I could just figure it out myself, but it seems complicated. Anyhow, I basically just need to know the colors wires feed each speaker, so I can wire up the 4 channels of my amp.