Created an account to thank StevePT for the fix and Bryan101010 for the additional detail about wire colours. I was dreading having to pull all the wiring to search for a break, and was relieved to discover this crappy connector problem. Probably something that should have led to a recall notice, given the number of people who seem to be affected and the fact that a melted connector means the possibility of fire. But oh well. I'm just glad to be able to see out my rear window again. Thanks!