Oops, I had a typo in that question that made it more confusing than
intended.  It should have said:
What's on the rear end of the camper vanagons' electrical inlet? How is it
wired... is there a three pronged plug coming from the van that plugs into
the rear of the *inlet*?  I know I could check, but I don't want to disturb
my gasket until I'm ready to replace.

Basically, when I go to remove the electrical inlet from the side of the
van, what am I going to be disconnecting from it and connecting to the new
one?  Is it a normal electrical plug?  Or individual wires attached to
terminals?

Thanks again!
Wes