I have upgraded sound and it’s pretty good (and much better than S). Has anyone noticed static or music hiccuping when playing off a USB stick ( it works perfect in my X5 )? Screen setting changes are one of the times that I hear the noise but it can vary when failing. Also, are you selecting Dolby stereo for all your music or deselecting/adjusting bass/treble/mid-range for certain songs. My wife’s macan recommends shutting off Dolby when looking for an audiophile sound ( linear mode )?