George,
It looks to me like there is simply an additional short linkage arm going down to the solenoid. It seems that when you turn the key, the linkage moves the arm in the solenoid, which sends an electrical signal to the other solenoid, activating it's corresponding motion.
I'm going to take my door panels off again by the end of the weekend. I didn't see any micro switches, but I'll look deeper into it. In the mean time, If you think of anything else, let me know. Thanks.
Michael
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