Looking at as many dashboards as I can, this hole in my dash does not appear to be factory. I'm meaning the gigantic gaping hole above where the radio should go. Most of what I've seen shows it should be considerably smaller. Was there some kind of rare factory option that should have been there? Maybe the factory air? Or did one of the previous owners hack this dash apart (which I'm thinking is more the case)? At least it appears to be fairly straight cut and clean.
Also there are three round holes in the panel just to the right of the large hole, what would these have been used for?