I just moved into a new home and had some in ceiling speakers installed by the builder.\nThere are 5 ceiling speaker locations in the main family room that I have all working with my new home theater just fine. \nI also have 6 other speaker locations on the main floor. \nComing out of the wall near the TV hookup are 5 white speaker cables with just red\/black wires inside the jacket. I believe this is 16\/2? I'm obviously a novice here.\nThere are also 3 black, thicker cables coming from the wall. These have 4 wires inside the jacket (red, black, green, white). I believe this is 16\/4?\n\nThe 5 speakers in the main family room are connected to the 5 white 16\/2 wires. All is fine and working.\n\nHowever, I'm trying to connect the remaining 6 speakers throughout the house and having trouble getting any sound.\nI've assumed each of the 3 black wires went to one of the 3 speaker 'zones', each with two speakers.\nThe confusion I have is when I went to wire the ceiling speakers at those 6 other locations, there is only white 16\/2 wiring (red\/black only) there in the ceiling.\n\nIs it typical that 16\/4 is run through the ceilings to a 'zone' and then split\/spliced into 16\/2 just before the individual speakers?\nIs the black 16\/4 intended for 2 separate speakers since there are 4 colored wires inside? or am I completely off base?\n\nI'm sure there is something basic I'm missing here.\n\nThanks for any help.