Hi all, I'm a bit confused about subwoofer to receiver cable connection and would appreciate any advice. On my receiver there is one rca input and on the subwoofer there are two rca inputs - left and right. On my other similar setup I have two rca cables going from the sub into the y-connector and then into the receiver. My question is whether I can get away with just one rca cable and one y-connector, and rca cable going from the receiver into the y-connector and into the subwoofer? Or, would I still need two rca cables? Thanks for your help.