I have a Note 10+ 5G and my car auto plays any media when it's connected to Bluetooth. When I start my car it auto plays. It I get a call and hang up it auto plays. I have to manually pause the audio or shut it down completely to keep it from automatically playing any media.
I've had it auto any last opened app such as YouTube, Play Music, or Apple Music etc.
I have searched the settings frantically to make this stop. Does anyone out there have a solution? This is so freaking annoying.
Have you tried the steps in this video? https://www.youtube.com/watch?v=IGynabK6F6o
It sounds like the car's radio unit is sending the signal to the phone to autoplay. I would recommend reaching out to the manufacturer of the car's radio and ask about any possible new updates and if there is a setting on the radio to turn this off.