Regardless of the station, the audio volume changes from low to high randomly when listening on Amazon Fire tablet. For example, volume will be set at 7/10 and randomly go down to 4/10 (not a literal change in the volume level on the device, but the audio on the app drops noticably). The volume remains lower longer, and only goes to the actual, higher volume briefly. I also listen on my Android phone and have no issues with the same stations. I use other music apps and do not experience the same issue.