Originally Posted by Hondo
I'm brainstorming a way to secure it so that it is safe and removable...
Sportsmobile had mine held in with screws from the refrig compartment up through the board between the refrig and micro and into the bottom of the micro. That meant I had to pull the refrig to get at the screws. So
I used a couple of half round trim board across the front bottom of the micro and across the back bottom of the micro so it sat in a hole that it could not get out of without being lifted a half inch of so. The half rounds were screwed into the board between the micro and the refrig.
Then I used another board to fill the gap at the top so the micro could not bounce up and get out. That board was screwed in place from the top.
My space over the micro was not the same as yours so you may need another way of doing it.