My wife hit a tall box in the road with the pass. side mirror unit. While the unit itself collapsed inward and stayed on, the entire internal piece (the piece with the glass on it) popped or was torn out of the housing. From doing internet searches, I'm not sure whether I need the whole thing (housing and all) or just that internal piece. The motors and everything to move the mirror (if it was there) work OK. Any ideas on what I'm looking at. Gotta have it repaired, but just am trying to figure out whether to involve my insurance.