Thanks. I'll try the recirc. It'll be hard to run the AC this winter. I live in Northern Ontario and today it's -25C! Brrrr.

Could there be any other solutions in addition to what you've helped me out with?

I often get thick frost on the inside when I leave the car parked. In summer, the windows steam up while the car is parked. Other cars parked around me do not seem to have the same problem.