I pulled my AC Unit and Radio Unit out, and I noticed a factory plug that was flat rectangle shaped and bright green with black, black/white and purple plugs sitt g behind no my Stereo but not plugged to anything. I've pulled my dash apart searching for a random plug to aalttach to it, but I can't find anything. Does anyone know what it goes to? My AC Unit won't power on, and I wonder if maybe it has to do with that.. please let me know!!