Ok I need some help so any feedback would be great. I just got a new kenwood head unit kdc mp628, and i wired everything up but i'm not sure whats going on. Everything works fine on the radio, but if i put in a cd or play my ipod i get no music from any speakers, but my subwoofer plays. I have a subwoofer preamp rca cables to my kicker zx1500.1. I have a factory amplifier - Infinity's 6 channel amp. Am I bypassing the amplifier and not getting any power to any speakers when i'm playing a cd, or did I not wire it correctly? pretty tough question i suppose..