ok guys/gals need some advise. I already replaced the head unit in my 04 Silverado. now i am going to move forward with replacing the factory speakers and adding a subwoofer. My question is, run 2 sets of component speakers or a set of components up front, mid bass in the rear doors then the subs. Or components in the front and 2 way speakers in the rear doors. Not sure which way to complete my system.