Note: Thanks to member "itworks" at http://www.odyclub.com forums for information about the connector problem.
My initial fix for this was to simply wrap some bare copper wire around the connector to reduce the resistance. But, not wanting to completely over-ride the safety function, I decided to see if I could make the black layer thinner to reduce the resistance. I found that by heating the tab while squeezing it in the center, the black substance would soften and sqeeze out of the gap. This resulted in a maximum resistance of about 0.5 ohm. It is necessary to trim the excess material before re-assembling the connector.
Re-assembling the motor etc, is the reverse of disassembly.
Put it all back together and enjoy the whir-whir of you newly functional rear windows.