Change "Audio Applications" in Notification Bar
It appears to be a TouchWiz/SGS3 feature.  A post on XDA developers suggests freezing ContextAwareService.apk if you'd like to disable it, but no way to edit the list.  Another post suggests that a more recent release (LFB) has options related to this (settings -> accessory -> audio applications), but doesn't expand on whether or not you can edit from there.