bfrd

I have an odd problem with my 3rd Gen IS. I listen to Pandora almost exclusively through the Enform App Suite (Android Galaxy s5). Both versions are as up to date as possible. Almost every time I start the car the volume level goes to 22 no matter what it was set at before. If I get a phone call, the same thing happens - volume goes to 22. Does anyone know why this would happen and how to stop it?