Hey whats up, I am looking to put a system in my 03 silverado extended cab, for those unfamiliar it has 6 1/2's in the front doors and 4x6's in the rears. My main idea was to just swap the speakers to get more crankability over stock, but I heard when swapping to aftermarket I might lose bass since aftermarkets are made for clarity to be accomponied by subs...also I heard it'd be a good idea to not even touch the 4x6's in the rear doors since they are pretty useless, I've been advised to get a component system for the front powered by an external amp then I was gunna put 2 10's in the back. Well I work at circuit city and the main reason I found these forums was because i was checking out my discount on polk stuff, which is damn nice. anyways I was looking at the MMC6500 system and my original bet was to get 2 inifinity 1030w's as my subs. can anyone give me some opinions on this plan or other recommendations? I strictly want to stick with buying anything polk or anything from the circuit city website, I'm not looking to win any competitions or anything, just some decent, reliable, clean stuff. So basically looking to see if my other advice I have been getting is correct and then advice on what amp to power the components with and if anyone wants to contest the inf 1030w's I'm open for suggestions, but I need them to fit in about a .85 cubic sealed box. Anything polk and anything from CC since I get the discount. BTW how good r the polk amps compared to MTX and audiobahn?