Audio Systems: Factory amplifiers for toyotas., scosche, wiring harness

Question
I'm changing the stereo in my 96 Toyota 4Runnner. It has a factory amplifier and I need to know what wires do what. There are 13 wires and they are all color coded differently than the wiring harness for my stereo. I need the wiring diagram to know which wire goes where.
                                       Thanks

Answer
Are you keeping the factory amp or not? If you are keeping it, you will need a 4 channel level adapter like the Scosche SLA-4 product. If you are bypassing it, you might want to buy an amp bypass cable from Scosche, PIE, or  other car audio supplier.