Originally Posted by A-series

Shouldn't have to take the glass out to access the motor. When you remove the interior door panel, keep in mind that after removing the screws, you pull on it from the bottom first (so the plastic clips disconnect) followed by the sides - there's no clips at the top, it rests in the window channel so after popping out the bottom and sides, and removing the triangular cover over the mirror mounting bolts, you lift it up out of the channel. You have to wriggle it a bit sometimes when putting it back on (top first) to get it to sit in the channel correctly.

If you don't do this you can bend that bit, that holds the panel in place at the top, but it can be bent back into shape and even reattached to the panel as long as you don't mess it up too bad.