schematics

This is kind of a DIY, most of the instructions are here, but I could post a picture of the fuze box or wiring colors afterwards, and the installed mirror, unfortunately I've got a hangup. I have a brand spanking new 2015 Kia Soul +, I want to get rid of the garage door remote in the console...

I'm going to put in a 1 channel amp for some subs I have as well as a 4 channel amp for the door speakers. I'm having a hard time finding a wiring schematic to tie into the the correct wires that run from the factory head unit back to the factory amp in the rear. There are two plugs in the...