Ok, why do they even need to know if the car is in MOTION at all just to play music??
All of my car stereos so far, have never had to have any connection to car info to play my songs as I barrel down the road. On custom installs, I've never hooked to any of the car data, etc.
Why would an entertainment system need to know any of that information at all?
My car stereo from 2005 increases the volume as my speed increases, and that feature probably goes way back.
Then there's maybe the option to suppress notifications while you're driving some people might like.
Who's software is responsible for displaying the backup camera view, and what draws all the overlay info on that screen? The infotainment system right?