Bought a trailer receiver a and had the receiver installed a while ago, never got to installing the wiring harness until recently and cannot for the life of me find the wiring harness. Dropped the rear spare and the looked all over but it's no where to be found. YouTube and the directions show it readily accessible but that has not been my experience. Directions also say there is a protective boot covering the plug but the only plug that I've found is not the correct shape. Any help is appreciated!