I searched past threads for any info about the question I'm about to ask, but had no luck.<br/><br/><strong>Background:</strong> Our 1999 U320 has the OLD Bose system (not the 321). The amp/tuner/CD player is in the left front cabinet, above the driver. In Zone 1, five sets of cubes are wired around the living and dining area. The bass speaker is under the kitchen counter opposite the couch. In...