Well im getitng tired of only having a front passenger speaker, and a rear driver speaker (which cuts out half the time) so I am bypassing my factory amp and running new wires. So my question.. where do the wires ruin? And im assuming some of the back panels will have to come off. How do they come off? And if any one knows which wires on a DEH-P6500 go to which speakers, that would be great too. Ive lost my manual.