I've looked at my newer mopes here and NONE have that type of socket. Weird that it be Caravan/Town & Country only. But with ma you never know. I'm guessing its the type of tailight that uses a board that connects to the tailight.
Neil, I'll keep my eyes open for you. A wrecker with a GOOD tailight may not want to seperate it and sell it as an assy.
Maybe I can barrow one from somewhere.... hehehe