I want to put on a trailer hitch on my 2010 Outback (which I got in less than a week! Lucky/ YESS. Problem is, I can't find the wiring harness connector to hook up the "handy" plug-in adapter that I will use. I haven't removed any inside trim panels yet, though have looked for wiring under the liftup floor panel with no luck. Anyone know for sure where Subaru has hidden this?