Of the 3 connections on the factory amp, which connector is the signal out to speakers?

 

 

If you can't figure out the schematic.......it should be the plug with 8 wires. 4 regular speakers times 2 wires per speaker.

 

Connector X2

 

Appreciate it. I've seen these schematics a few times however until I printed these out, deciphering them was hard to follow (99.9% of my browsing is done on my phone). Correct me if I'm wrong, but I can tap into pin#8 (pink wire) for remote turn on for my aftermarket amp? Also, is there a manufacturer (Schoshe, Metra, etc...) that produce a female harness clip that fit the stock amp connecting? If so, I realize that it will probably need to be repinned.

 

The pink wire is the "radio on" signal.

If you are bypassing the OE amplifier just follow the color codes. What "tapping"?

A very good source of info and parts is crutchfield.com. I bet they have a harness to the HU, if not the amp.