I have a 2013 Hyundai Veloster Turbo with a 6 speed manual transmission. Since the day I bought the car I have noticed a strange sound from the transmission/clutch on start up when the car is cold. It sounds like some ball bearings rolling around inside a pop can. When I push in the clutch the sound stops. After the car is warm and driven some the sound also stops. Is this something that is still breaking-in with the clutch system or is this a bad imput shaft or thow-out bearing?