Hello. I cannot seem to find a downloadable file for this, so I will ask here. I have a GE rangr and I am not sure how to hook it up. There is the control head cable connected to the control head itself to hook up to the radio, a red and a black wire to hook up to the power. Then, there is one more black wire of smaller guage that I assume you hook up to the speaker. I tried hooking up just the red and black, but nothing. Do I need to hok up the speaker to the radio to make it power on? If so, do I connect it to the radio with red or black and which to I use to connect to the power? Please help. A Wiring diagram would also be very helpful. Thanks in advance