I hope that this is just a dumb problem. I have two sets of rca's coming out of my headunit (front and rear), and speaker wire coming from each speaker to a kicker 350.4 amp. If I put the front rca into the front rca input, OR the rear rca into the rear rca input, I'm getting sound out of all speakers. This is each rca by itself. So a single rca cable is sending signal to all four speakers even when the other rca is not plugged into the amp. If I put in both, I'm getting alternator whine.
Any ideas?
Head unit- pioneer deh p7100bt
front: pioneer 6.5"S
rear" kicker components