Yeap, looks like someone put a new compressor on it and didn't finish the job.
Compressor needs two switches (there's a great writeup on the forum somewhere) in those two holes that have covers installed form the factory (above and below what you circled).
If you buy the right switches, they come with new pigtails. You have to splice the new pigtails to the existing Fiero wiring (since they don't make the "old style" anymore).
I just did this with my car, not too difficult, though I did have the engine off the car.
Here's a good thread on it AC Compressor switches
[This message has been edited by 06GTO (edited 04-22-2018).]