The '97 Odyssey I recently purchased has a trailer hitch but no electrical hookup. ( they used the hitch for a bicycle rack). I'd like to add a wiring setup for a small trailer. Does The '97(DX) have a plug-in for the wiring kit? The parts man at the Honda Dealership said they didn't have a plug in until about 2000 or 2011 but he didn't sound real sure. Some vendors on the internet show a kit for the '97 with a plug-in. Does a plug in exist for the year and if so where is it?