Honda: Trailer light connector 91 Accord Wagon

Hey ya'll I just installed a trailer hitch on my 91 Wagon and I'm
pretty durn sure I remember seeing something in the owners manual
where Honda provided some kinda trailer light harness connector in the
spare tire compartment on the 91 Accord Wagon. I have lost my manual
and I was at the Honda dealer and the parts guy could neither find a
connector nor trailer light harness for my car.

Went to Pep boys to see if they had some kinda harness for my car and
in their
trailer parts index it specified this universal harness with some sort
of converter. Now my questions are.

1> Do any of you know if there is an actual connector provided in the
91 Accord Wagon?

2>If so, where is it located in the spare tire compartment? and do I
need this $20 converter gizmo or just a generic connector?

Thanks