Hi! This is my first post on this board, but I've been visiting for a while now. I know a little about car audio, but not much. I was wondering, is it possible to run four sets of rca wires to one head unit? I have a pansonic 8401U which has three pre outs(one for front, rear, and sub). I want to run three 15" SPLW subs off of three SPL series II amps. I also like running all my interior speakers off one amp as well. I would like to run all three subs from the sub pre out, since it lets me control the subs indivually from the interior speakers. Can someone tell me if this is possible?