Mine didn't come with a trunk release. I grabbed one at the junkyard but didn't take the button at that time, for some reason.
Pin 5 (gray) is "Automatic Day/Night Mirror Signal" and pin 16 (pink) is "Automatic Day/Night Mirror Low Reference". Schematic shows them going through the Driver's Door Module. I thought it was all self-contained until I saw that while looking up which wire needs power.
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