im trying to install a tailgate light bar on my 2010 ram 1500 and have a few issues. First of all if anyone out there has installed on how did yo not cover up the access hole for the spare tire? Next is the wiring. The light bar comes with a typical flat 4 plug 4 wire harness with the typical green, yellow, brown, white and one other white for backup lights. The factory mounted light plug on the truck has seven wires coming from back of plug. Red..black.. Brown.. Green.. White w/red stripe.. White w/orange strike .. White with w/green stripe. Does anyone know which wires from 4 wire harness(plus white backup light wire) go to what wires on truck harness. I know i can just plug the light bar into the plug but I don't want it showing or taking up the 4 pin plug. Any help is appreciated