Duster Dash Mystery- Name that missing item.

Never seen a hole like that. Notice screw holes are not symmetrically cut which suggests to me use of a hand drill.

You say you have the light for the radio accounted for. How about the light for the HVAC controls? The glove box light was on the right side of the glove box liner and the map light was under the dash below that.

That's my 2¢ worth.