I received my mirrors a few days ago, and I see that the connector has 3 pins (i'll put images later). but when I opened my mirror installed in the car, it had 2 connectors, one with 3 pins and another one with 2 pins. so I swapped the mirrors to check if the mirror movement would work and it doesn't. I found also in realOEM.com that there is a different wire harness for the folding-dip-heated mirrors, so that might be something else that needs to be swapped.
if you have images of your mirror, post them here so we can compare.