Has anyone added switches for light bars and such? What do you do to make the light inside the switch work with the headlights. I want to have the switches light up when I turn on the headlights. There is one open spot in the light switch connector. Is that the spot I want to use to power the lights in the other switches? the dealer and the factory have no clue. You would think someone that makes and sells them would know something that seems this simple.