For the past month, I have been noticing a strange audio issue. When I have my AirPods in, playing audio thru CarPlay, or just off the phone's speaker, the volume goes way up, and then way back down in a vicious cycle. I have checked that the volume buttons are not jammed, and they are not. I even changed the cases on the phone thinking it could be that, but it did not help. I was wondering if anybody else has had an issue like this.