Ten To The Ninth
Junior Member
I'd like to install this small light bar near the hitch receiver by attaching the wires to the 7 pin male jack then inserting the jack into the 7 pin female on the truck so when I shift to reverse, this light bar illuminates. But I can't find which wires make this work the way I want. I think I've tried every combination of the 7 pins. Does anyone have a solution? Thank you. 
