I just did this swap and am having some troubles with the button operation. I replaced a CCC unit from an 07 (no pre-set buttons) with a newer unit which has the 6 preset buttons. When I first installed the new unit the buttons seemed to function, but there was no sound. I then coded the new unit using NCSExpert (modules CAPPL, CAUDI, CGATE, CHOST, CTUNE) as described in many places on various forums, and the sound works! The preset buttons no longer work though. Is there another module which requires coding for these buttons to function?
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