I had first problem today that is puzzling. With hood up and engine cover off, when I turn on the A/C (normally it's on all the time here in FL) I hear a really ugly noise that sounds like it is coming from the Supercharger clutch on top and not from the A/C clutch down low. Turn A/C off and noise stops. When A/C is on, the engine fan comes on automatically creating some more under hood noise that sounds normal. Does anyone know if turning on the A/C also activates the SC clutch?

Karl