I'm guessing you'd have two because it worked for you after you changed the one on the driver's side. When I was buying my actuator, I was at the dealer and I remember him saying that the dual climate where you have a separate control for each side has two actuators. Go to the dealer and they can print out a digram and show you where it is.
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1997 GTP Coupe, Bright Red
Sunroof, HUD,12 Disc CD Changer
180 T-stat, K&N FWI, Borla exhaust system, 3.4 Pulley, Tranny cooler, u-bend delete, High Flow CAT, Intense PCM 18" Chrome Tyfun wheels, painted center console, and dash panel.
Next: 3" down pipe, SD Ram Air Hood,