This.
Isnt too difficult to rewire the speakers in a vehicle, takes some time thou. Had to run all new wires for the speakers in the Z as the factory amp uses proprietary connections in the back of the headunit and into the amps in the front and back of the car. Was 10x easier to just run new wires to all the speakers.
I hear steve will do all sorts of crazy wiring work if you give him a few lines to snort of a cheap hookers ass.