Well, the mirror retract is on a push-button so as long as your alarm has a momentary

(as opposed to latching) output there should be some way to make it work, even if you need to fit a relay into the circuit to replicate the function of the switch.

Must say, though, I'm not sure it's worth the effort of doing.

Sure, it might be nice to have the mirrors retract when you lock the car but I can imagine lots of situations where you'd unlock the car, the mirrors would extend and then you'd get into the car and immediately have to retract them again so you can get out of a tight parking space or garage etc.
