Thanks!
I was able to install it without taking the whole panel down, by just skipping the dampening gear/spring. Works great and about a 5 minute install.
1. Snap off the cover
2. Snap in the new compartment (2 hole inserts on "hinge")
3. Add included trim piece behind the hinge
4. Put black button and spring into area above the trim button
5. Hold black button in and slide grey full trim button on top of it
Might put the dampening gear/spring in sometime, but really it all works fine as-is.
Dampening would be a nice touch, but not required... glasses aren't flying out.