I just got my '10 Equinox 1LT a few days ago, and I wanna add the GM tow hitch, mainly for a bike rack and a trailer weighing less then 1,000lbs when loaded. I red online somewhere that I need to get the car programed for the trailer lights to work, even if they're plugged in. Does anyone have any detail about this or any insight as to how much it would be, my dealer said they'll do it for $135, to hook up the hitch and the wires, but how much seems fair to just to program the computer? Thanks so much. Also, how hard is it to hook up the hitch? I found a video of someone doing it on an older equinox and it seemed so simple and like there was no drilling. Thanks soo much>!