Hmmm... the dang radios aren't the same width. They are close... but a bit different.
I've been thinking through the best way to secure the radio stack. One side will be right up against the support for the panel.
I have also decided to put the small Dynon AP74 (Auto Pilot Control) up at the top of the panel. I think it actually looks better even with the bottom of the radio stack and the 696... but I think the panel will be too flimsy with so many cuts in a row. I've got a ton of stuff in a small space.
So far, I'm surprised how rigid the panel is. I have cut away oddles of aluminum.