I have had a some experiences with the 2013 up system - Sony upgraded sync. . If some of the electronics carried from that year this was my experience - Do the button “tap” sounds remain after losing the music?
If the “tap” sound is still there then the problem is internal and you may have to send the Audio Control Module to be repaired.
If the “tap” sound is still there then the problem is internal and you may have to send the Audio Control Module to be repaired.