My Wee is pretty much stock. I have wired a 12v outlet on it, but do not run anything off of it most of the time. I am looking at getting a heated jacket and glove liners. If I get the 90 watt and the glove liners will I be able to run a gps unit in the future? Or should I just be on the safe side and get a 65 watt jacket liner. I am looking at the Firstgear heated liners.