I've been kicking around the idea of replacing factory speakers with infinity kappa 6x9s in the back and I'm currently undecided on what I want in the front but I would like to get some sort of reference or kappa model. I really want to be able to push 75-100 watts to the 6x9s but can't seem to find any 6 3/4 speakers for the front that can handle more than 50ish watts rms. Anyone have any suggestions or insight on how I could go about this? I'd like to get some breed of 4 chan kicker or rockford amp. Another question, I have an onstar adapter for my pioneer p3300bt HU, how do I keep door chimes if I were to run all new wire?