I've been reading a lot about car audio on these forums and a few others around. I recently installed a Clarion CZ702 Clarion U.S.A. | CZ702, and now I'd like to upgrade the factory speakers. I have a Dodge Caravan with 6 speakers (6x9 rear and front door, 5 1/4 in the dash). I keep seeing a bunch of stuff concerning coaxial vs. component, active vs. passive, etc. Well, I figured I'd ask the experts what they would recommend. I don't have a very high budget, but I'd like to get a decent sounding system. I don't think I want to add a sub. I also don't want to do too much modifications to the van. I mostly listen to rock and metal.