Well, the connectors came from the Toyota dealer and they aren't right (way too big) so I sent them back.
Fuck it. I figured out that the two-pin LED pigtails (for a desktop PC) slide right onto the pins for the lighting assemblies. I scrounged up a few of those. I ordered some of the Posi-Tap connectors to make the connections into the existing wiring. I'll use shrink tubing to make it all nice/neat as well as to hold the connections together at the lighting assemblies.