Just FYI - you can replace your head unit even on newer cars. There's a bustling aftermarket industry for this kind of stuff: https://www.belsee.com/android-car-radio/hyundai-radio.html This way - your data gets abused by the Chinese government instead of Hyundai! (I kid, sort of, but these head units let you exert more control over your car, as they often ship rooted, or can be rooted) If you DIY install the head un…
It's tricky for some cars. Things like non-standard sizes for the opening. Important functionality baked into the head unit (Volvo, for example, has paths to configure some safety options, trip/mpg display, etc). Integration for steering wheel controls, rear displays, backup cameras. And more that I'm missing off the top of my head. For some vehicles, some of the above have options to tie in with a 3rd party setup, o…
Backup camera, steering wheel buttons, MPG, fuel level, low tire warnings...
It's actually really impressive for for $190 I spent on it.
The only thing which it disabled when I replaced the head unit was the built-in handsfree bluetooth stuff. It all goes through the stereo now (and doesn't work that great). YMMV on these aftermarket head units.
A lot of the stock head units look like weird sizes, but it's really just trim on the front of it looking highly custom. Aftermarket units sometimes (often?) come with matching trim pieces to make it look OEM.