I have a 2013patriot with the Boston acoustic sound package.im looking for the wire schematic for the amp?,i need to know the wire color and function.i want ad a aftermarket amp along with what's already there!my idea is to tap into the rear speaker outputs into a line converter then to the aftermarket amp?i already figured out where to get my remote turn on from.and figured how to get my big power wire to the cargo area..i know ya can buy a harness that goes in the dash taps the radio harness and get rca&remote but im waiting till i upgrade the head unit to rip the dash apart!!any help would be greatly appreciated!!