Where Does Cabin Air Exit? Options

[Vockroth]

I just bought a 1995 Celica with 30k miles on it. It has sat for over 10 years in the desert, many of those years in a garage. I believe I have a problem with the air exiting the cabin when I turn the AC to bring in outside air either stopped or moving. If I crack open the window barely I have air rushing by the window seal. This has to be way too much back pressure. I an concerned the blower motor is straining. So my question is, Where does the Cabin Air exit? I believe it may be plugged.

This car sat for maybe 10 years in the desert. I found a colony of ants in the distributor cap dead. The interior is clean. The paint is fair and I have only buffed out the hood and front fenders. I threw on a set of chrome 16" Matrix wheels and tires. The engine is a 1.8, 4 banger. Perfect for todays and the futures gas prices. I have only had this car a few days. I think if it is in the back where it should be I may have found something. Maybe an exit point. Behind the license plate there is an opening. I found it taking off the Dealers advertisement frames. I wondered why this was there. It is like doubled walled back there. Something a mud wasp could make home.