I added a set of LED turn signals to the bottom of my trunk. Got the little wiring gizmo from JP cycles that plugs into the back wiring harness and extended the wires to the trunk. Had to make little brackets out of 3/4 inch square aluminum stock. Been about 100 miles and no problems so for. I soldered all the connections and then used the double layer shrink wrap that has the adhesive inside. Had to get all the wiring routed in the trunk so the liner would sit back down but all in all it all worked well.