Hi all. I have had this sound system for about 6 months, and i decided to sit down and make it sound amazing because it should but just doesn't. I have a pioneer double din unit with 2 rca pre outs. front and sub or rear. I have kicker components in the doors and kicker 6x9s on the parcel shelf being powered by a kicker zx 350.4. Also 2x12 compvr subs being powered by a zx750.1. So obviously you can see my dilemma with only 2rca pre outs. Im not a massive car tech head. I know just enough to get my by. When they were installed he had 2 y splitters into the 4 channel. i took them out because i wasnt happy with how it sounded and just plugged the two rca males into the 4 channel. If someone could explain to me how you properly hook up the y splitters, i know you lose fade ability. i just want to get the best out of my system. a rough diagram would be great. thanks.