Hello, I have a head unit with only 1 set of line outs. I have 4 speakers and a 4 channel amp. What is my best connection to maximize my amp and speakers. I'd like to be able to run each speaker on its own channel. Is having a head unit with only 1 set of preouts hurting me? Right now I have 2 lines (Front Right/Left) coming out of the stereo and split down at the amp into all 4 channels. But now my fader on my head unit isn't functioning correct. Any suggestions? Thank you.