...setup and brands do you recommend? i like the brand kicker and was looking at the DS series. also i do have the factory sub that doesnt do much. also i have the sync so i have to leave the factory deck in. my volume doesnt go to loud so if i get new speakers will that fix the problem? or do i have to put an amp in? and if i do have to put an amp in how many channels do i get? do i get 5? 4 for the basic speakers and 1 for the sub? im sooo so lost please help me!!! i want a bumpppin system.

thanks!!!