Sideview Mirror Install

Mirror fell out. Looks like it just snaps back in place? Any tips?

http://i141.photobucket.com/albums/r52/aleekat/20161101_161709%20Medium_zpsri7qec96.jpg (http://s141.photobucket.com/user/aleekat/media/20161101_161709%20Medium_zpsri7qec96.jpg.html)http ://i141.photobucket.com/albums/r52/aleekat/20161101_161718%20Medium_zpsg5k9e7gm.jpg (http://s141.photobucket.com/user/aleekat/media/20161101_161718%20Medium_zpsg5k9e7gm.jpg.html)

Looked closer. It does just snap in place. Just aligned the outside tabs on the glass with the motor. Press again the middle of the glass not the outside for fear of breaking it. Tip: Some WD40 at the movement shafts prior to putting the glass back on.