Right now i have the 6 speaker system with the head unit that has the 7 band equalizer thing on my 2000 GTP, its not Bose or anything. I was curious what i could do to have a better setup without changing my head unit, i dont like the look of an aftermarket head unit. Could i switch out the stock 6x9's with some higher quality ones, then change out the speakers in the door too, and run an amp to them or something like that? I know a little about audio, but not a ton.