So I'm adding a Line out converter, and the issue i'm having is. I really don't want to take off all the plastic around the rear speakers. The wiring runs down by the door under the plastic. Can I just cut the wiring there and splice into it and solder my connections. The other issue I'm having is, I found the wiring diagram on here but it was for the Bose. Is it the same color for the pop with a base system? Orange, and dark green? Thanks.