I'm going to be going with a complete alpine type R setup. Right now I have 6.5 in the front kick panels and 6x9's in the rear. They sound great so far. The fronts are powered by a cheap lil 300 watt amp for right now. I will later be putting 6.5 componets in the front, the 6.5 that are there now in the back, a 15 inch sub in the back, then a 600 watt 4ch amp for the speakers and a 1000watt mono for the sub, all controlled by an alpine cda-9887 and then all tuned using there imprint sound manager.