78 New Yorker. climate control switches & Window electrical issues

There's a click almost like a relay in the dash when I press the buttons for the vent, heat, etc. but nothing happens. I have no air coming through, so my guess is there's just no power going to anything.
do I have to tear apart the dash and check everything over? if so, how would I get in there?
the A/C compressor and everything else is in good condition and the car runs and drives very well.

the only issues I'm having is the entire HVAC system, and the windows don't roll down, I have...

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Author: emeryd17