Adding to Doug's comment:
The AC blowers are in the passenger footwell (right above where your passengers feet would be), and are indeed different from the heater blower which is in the center of the dash (in it's own housing).
The AC has it's own resistor for the blower speeds. Mine was broken, and AB sells a updated unit, this is a really quick job since it's located behind the cowl above the hood on the passenger side (picture attached).
The heater blower motor is a pain. The instructions Doug posted helped me through the process (that, patience, and lots of beer).
I attached some pictures of how the dash looks when you extract the unit, and of the housing.
Good luck, and make sure you test all your flaps in the housing unit before you re-install, you don't want to do this process twice.