I would remove the door panel to get to it from underneath as the switch bezel is notoroious for breaking the retaining tab at the top (near the mirror adjustment). It is very thin plastic and WILL break if you cannot release the bottom edge clip gently. Been through 2 of them and even on the 2nd one I was gentle. I'm pulling the panel from now on. It's not hard and guarantees that I don't have to spend another $45 on a new bezel.
The bottom clip is metal and is easy to see once you get the panel loose.