[svxistentialist]

That's part of the heater matrix.

I'm not entirely familiar with the internals but I think that is what is called the evapourator assembly. Inside the plastic box is a radiator type matrix. I'd imagine it is enclosed in plastic so that condensation is not allowed to drip into the car.

If you look at the codes and writing on it you will see the word "Zexel". Zexel is the name of the company that makes the air conditioning unit for the SVX.

Joe