I have a unused accessory switch that I want to use for controlling something. When I looked behind the panel I found this and have no idea what is what here. There are five wires attached to the switch. Black I imagine is ground, white is tied with all others and capped so probably not used. That leaves red, green, and blue. Any ideas how it is wired? I found a wiring diagram online but don't quite understand it. Where should I tap into power? IMG_2078.JPGIMG_2077.JPGIMG_2079.JPG