[richtazz]

The blower motors are different between auto climate control and manual A/C so I agree with bnaylor that I would pass on the Siemens universal part (the AC-Delco part number he referenced is correct for your vehicle). Since you have the auto climate control, there is no blower resistor either (as bnaylor pointed out), just the blower control module, which rarely fail. I would suggest adding a cabin air filter from a like year Buick Regal while you're in there, to help with water intrusion and keep debris/dust out of the HVAC system. For reference, the AC-Delco part number for the cabin air filter is CF132.