I just bought a new place that is wired for surround sound with speaker wire where the speakers are, but the wires coming out of the wall near the receiver just have 5 RCA male ends, one for each speaker. I believe the prior owner had a Bose system. My question is what is the easiest way to hook up the RCA ends to a receiver? Do I need to rewire, can I just cut the ends off, or what are my options? I'm in the market for a new receiver, but none of the ones I'm looking at have RCA speaker inputs. Any help would be greatly appreciated.