Questions Re; 82 Coupe

[b1biker]

I just purchased an 82 Coupe for a restoration project. I have a few
questions that I hope someone on the list can answer.
    1 - car has A/C but I can't find a switch to activate it - also no place
where a switc h should have been - Where do I look?
    2 - car has rear wiper/washer - how are they activated
    3 - I have an 83 Coupe GT parts car - What parts were upgraded from 82 -
83 that I should consider upgrading as I go through the 82

Help will be greatly appreciated?
TIA

Gary Meier
82 Coupe, 84 4KS, 88 5KSQ