I did it...I trashed the stock pioneers for some JL components in front, some JL components in the rear (adding a spot in the rear doors for the seperates) and some 3-way JL 6x9's for the deck. I have a 10" JL sub in the trunk now as well. Powering it all is a 6 channel amp for the front and rear components and sub and I'm powering the 6x9's with the stock head/amp. I should be a pretty sweet setup. I get the car back tonight after work. I decided to NOT do the cleansweep since I'm not a hardcore audiophile but I know it can always be added later if I want it.
Just wanted to share...I throw some impressions up here tonight or tomorrow.