I'm thinking of adding tower lights to my 2013 txi with the g3 tower. I can mount the lights and string the wire no prob. My real question and (perceived?) diffuculty will be connecting it to the mux ... I can understand the older rocker switches but how will I know/find the appropriate connections? Eventually will need to do the same for my second heater. For some dumb (but fortuitous) reason, the Malibu factory installed the heater wth a rocker switch next to my seat warmer switch instead o