The one I found was to pull the side panel off the dash by the door. There's a white foam spot going towards the firewall. I stuck a wire clothes hanger I opened up through the foam and had my wife watch for it to come out in the engine bay. Luckily, the clothes hanger was long enough, we taped the wires to it and pulled them through.
2013 JKU Sport, billet, auto, 3.73, LSD, 315/75/16 Duratracs on MB 72, 10A springs, Bushwacker flatties
Sold - 2005 TJ, red, auto, 3.73, 33" Duratracs, 4" lift
Ice storm casualty in 2007 - 2003 TJ, green, auto, 3.73, 33" Duratracs, 4" lift