I don't have auto-dimming mirror. Didn't take the mirror cover off to see if the wiring and everything is still there that I could have tapped into anyway. If I run into any issues or end up needing to re-wire anything down the road I'll keep that in mind.
On a side note, trying to figure out how I'm going to mount the rear camera. Have the sliding rear window, so can't mount it to the window itself. Trying to find a bracket or something else that might allow me to mount the rear cam to that I could then mount to the trim above the rear window.
There is also a tie town point (I assume for child seat) behind the middle head rest that sticks up slightly that I could use, but I would have to imagine that a rear camera will work better mounted at the top of the window than at the bottom.