I haven't posted here in a very, very long time

But, a little background first:

I am currently in the process of making a design project (engineering school) for my car. I am using the solar panels from solar landscape lights to charge a 12V battery (the solar panels will be installed on the back window dash). I have a temperature probe programmed to sense when the car reaches a certain temp (aka, 80 degrees), the vents will turn on. These vents will run off of the 12V battery.

My question is regarding the specs on the actual ventilation systemin 03+ Sunfires.

1) If I leave the vent system open to bring in air from outside the vehicle, like leaving it on face only, or face/feet, etc, will this bring in air from the outside?

2) Does switching to defroster automatically switch the vent system to just take in air from inside the vehicle?

2) Does anyone know what current (A, mAh, etc) the vents are rated at? I need to figure out how much, in order to purchase the correct battery. If someone has complete specs on the vent systems, that would be awesome

Here is a small plan of what I am trying to accomplish: