I have an ancient Radio Shack CB. It has a red, black and orange wire. the orange and red are fused. The red is power.. Duh and the black is the ground. WHAT THE HECK IS THE ORANGE WIRE!! As long as I have had the CB I never could figure it out (15 years now). I put it to ground and no difference in anything, put it to power.. same... Even left it off completely and it still did nothing!?!? Any ideas all you electrical nuts?