So,

This summer I plan on getting a double din kit from Grubbs and installing a touch screen H/U. I want to install an aftermarket 4 channel amp and a monoblock for a sub, my question is: whats the best way to hook up the speakers to the aftermarket amp? Is there some sort of amp bypass harness out there? Or do I run new speaker wire through the whole car? Also, I'm pretty sure the metra 70-7550 harness is the one I'm going to use since I plan on running RCA's from the headunit to the aftermarket amp(s). Just looking for a second opinion

The car is an 06 Coupe MT Bose w/o Nav

Thanks,

Mark