The electronics aren't in the radiation zone. Go to town on them. Just watch out for the super powerful transformer that makes the microwave actually work. This

The electronics aren't in the radiation zone. Go to town on them. Just watch out for the super powerful transformer that makes the microwave actually work. This project is mostly about simply replacing the keypad, not the controller itself. You can also make bigger holes than you would expect and still be safe: https://www.youtube.com/watch?v=8bXhsUs-ohw https://www.youtube.com/watch?v=8bXhsUs-ohw