I have a supercharged 2.4. My AC compressor no longer kicks on. Bad compressor? The only thing that should be spinning the opposite way is the alternator right? I don't think the belt has anything to with it. Do I need a new AC compressor?

 

could be anything

start with seeing if the compressor is even getting power to the clutch
then check the refrig level

If your close to a reputable shop, have them do an AC maintenance service, they will check the pressures and give the system a onceover
Depending on what is going on, they may charge you for filling the system with refrig, oil, dye; Or they could charge for diagnostic time if its something electrical