MR Vader aux switch help

[Darth Father]

Hi guys I almost got my MR Custom Vader complete. My last issue is the aux switch. I have it in the clamp box with the ignition switch but I didn’t mount the ignition switch it was already installed from the previous owner who botched this thing and gave up. I have completely redone it. My issue is the switch keeps pushing back down into the clamp box. Before I screw something up I wanted some advice on how to keep it from moving. I attached some pictures of how it is setup.