Don't want to stear away from my other questions but I have another noob question. I have a Sony HU that has 3 sets of outputs. Front,Rear,and Sub. The sub output has a wire with one rca hook up on the end. Not 1 red and 1 white like the front and rear has. Now when I look at mono amps the inputs are Left and Right. How does this work if my sub output only has one rca? Do I plug a Y adapter to the HU sub out? Or do I just plug one RCA into the Left input on the amp and leave the Right RCA dangling and not connected to anything? I hope you guys understand what I'm saying. Best way I could think of to describe it.