The cabinet is back! I will take some after pictures later but wanted to post these up to get an idea on how to mount this glass! The inside looks like this:

The glass will go in the center (yellow line) and it is outlined by blocks of thicker wood (red).

I only found one "mounting bracket" with the radio. A side view is below in the corner. Basically, the top portion tucks under the upper block of wood and the bottom is connected the lower block of wood with a screw. I am worried about the tension cracking the glass. I have no idea what material was used previously to "cushion" the glass in place.

I am mostly concerned with getting the glass in place, securely, so that it will not fall or get damaged rather than trying to go for originality. What are some options others have used?