This issue has cropped up again. Nothing on the passenger or back seats. I parked with the windows down in the garage and can reach in and turn the volume up and down but the vehicle doesn't turn the stereo off -- even if I lock the doors with the app. I can't adjust the radio with the app because, unlike when the car is driving, the "media" controls aren't showing up in the app. I went to the garage this morning, stereo off, and when I used the app to turn on the climate to pre-heat the cabin, the stereo came on with it. The only way to turn it off was to reach in, turn the volume to 0 and then preheat. Muting didn't work -- the stereo went on mute but, when I pre-heated with the app, the music came on again. Camp mode is not, and has never been, on.
I do have aftermarket puddle lights but have had them for over a year without this problem. Additionally, the windows are opening and closing properly so I don't think there's a problem with the puddle light. I DID notice shortly after I installed them a malfunction with one of the windows when the passenger side light came loose but that was fixed about a year ago. I'm currently on 2020.48.35.5
Could be a seat sensor issue. It might think someone is still sitting in the driver seat. Probably best to have a service center check.