AC died, ticking sound under dash

[1981_300sd]

Hello all.

My poor 82 240d was in a accident, someone hit it in my driveway while I was sleeping.

AC worked fine before and after the accident, blew cold air.

Yesterday on the way home, my AC would not turn on. When I turned on the AC I could hear a clicking noise under the dash. Passenger side of the car is where the other car hit mine.

Is this where you all would suggest looking for a resolution (under the dash)? Where is this relay under the dash that I hear clicking?

Thanks for any help!

Thanks,
Spencer