When starting my car up I'm getting a weird clutch noise. It only happens when I push in the pedal and only when the engine is cold. It goes away after the engine warms up. It sounds like a belt squeeling when I push in the pedal. Once the engine gets warmed up there is never a noise and I don't notice any problems with the clutch other than the described one. Any ideas on what it could be? I have a 2011 WRX hatch with around 10K miles. Any help is greatly appreciated!!