We bought a house with 2 sets of speaker wires come up from the floor in the family room with a hub down in the basement that the previous owner told us brings the outdoor speakers and rear family room speakers in. We hook everything up with an Onkyo 7.1 receiver and connect a passive soundbar, one set from the floor to one rear and one to zone 2.. The soundbar is seen by the receiver during calibration but not the rears or the outside. The strange this is that the existing wires only had 2 sets of positive and negative wires for 2 sets of speakers? How would that work? Don't each set need a Left & Right? Any help is greatly appreciated on how to troubleshoot and get all speakers working.