My new house has been wired for ceiling speakers and volume controls in four rooms. I have purchased the polk speakers and niles volume controls and in the process of installing. The 16/2 4-conductor wiring is home runned to a panel from the volume controls...I have been able to wire the volume controls from the panel; black-left negative, white-left positive, green-right negative, red-right positive. One of the rooms has 4 stereo speakers with one volume control. There are 4 16/2 2-conductor wires feeding to the volume control from the speakers. Each of the 16/2 wires has red and black wires. I am new at this and at a loss how and where to connect these to the volume control. Any help would be appreciated. Thanks.