they should fit, if and only if both bolt patterns are 5x 108mm. and depending on the wheels offset.
yea it will work.
PCM (12A650) location. I assume that you are reffering to the Powertrain Control Module (12A650). This is located on the firewall down from the passenger side windshield wiper. You can see the 104...
R-134a, available at auto parts stores
It is not Freon (R-12), It's R-134a, available at auto parts stores