I bought a HomePod at Best Buy in early 2024. I've used it periodically but not all that much. In the last 2-3 months, its started activating and playing music out of nowhere. It will just suddenly announce "Here's a song from your library" (or something like that), and start playing. It's totally unpredictable, and can vary in what it does. At first, it usually starts playing a random song from my library in Music - I do not have a subscription to Apple Music or any other service. It will play it for a while and then stop. Then a while later it will start again, sometimes with the same song, sometimes with a new one. It will then play a few seconds and stop, then the same clip again, and go on with this for a while. It will also often progressively raise the volume. Using the touch controls on the top or my iPhone volume controls have no effect. Ultimately the only way to control it is to unplug it. I've tried turning voice controls off, resetting it, and deleting it from the Home app. All to ultimately no effect. This 45 second video is an example of it going haywire after it had started up out of nowhere, with the volume steadily increasing towards the end. Again, I did nothing to select the song that its playing, it just chose it at random from my library. Its software is 18.1. Thanks for any help or suggestions.