It just slides into the compartment, no screws. You need to devise some sort of a hook tool to pull it out. Maybe try putting a small hook on the end of a straightened wire coat hanger. It's pretty easy once you done one.
If you then want to remove the whole compartment, it can be quite trick to remove it and especially to reinstall it. The whole lock assembly on the right side of the AC center vent needs to be removed first.
FYI the compartment that the IDC (in dash controller, the part you want to remove) fits into is caled the "spectacles compartment".