I bought a condo that is wired for sound. I found the spot where all the speaker and CAT 5 is run to in the living room near where the TV is to be set up. I'm trying to to get speakers set up on the patio and there is speaker wire run to the outside wall. The speaker wire run and terminated on the outside wall has two wires inside: black and red. I installed outdoor speakers and hooked connected the red and black to the corresponding terminals. However when I look at the cables that run to the living room the ones labled "Back Patio" have 4 wires inside: black, red, white and Green. I've tried hooking just the red and black but no sound from the speakers on the patio. I've also tried connecting the red/green and white/black wires and still no sound. Any ideas on what else to try? Thanks!