a yes does RCA wires make a difference in the sound of your stereo, would it be better to buy some good rcas then cheap ones, now if i have a HU with 3 preouts and im running 2 amps one for mids and highs, one for subwoofer, which would i put the mids and highs into the front input or rear? also i would only need 4 rcas right, im looking at some monster 4 channel rcas, would that work to run both amps or do i need seperate ones.