My wife recently bought a 2011 sorento kx2 which came fitted with a kenwood aftermarket headunit. This unit is rubbish, won't hold a radio station, far too many features for her, she just needs a reliable radio /cd with bluetooth. I was wondering about fitting an original headunit, but wondered about bluetooth, cant see a phone button on any of the ones i've seen, did these cars come with bluetooth? it has phone button on steering wheel. Can anyone give any advice on this please.