[tadfisher]

Well, that and the fact that no manufacturer ships a double-DIN hole in the dash any more, so it's pretty much impossible to get an aftermarket head unit. That said, there was one Chinese Android-based unit that was made for the 3rd-gen Mazda 3, replacement screen on the dash and everything.

[iainmerrick]

Not to disagree, but as I recall it, the big problem with modular head units was that people would just break into cars and steal them. Having your car radio stolen was fairly common when I was a kid.

[davemp]

I’m sure that could be addressed with some sort of crypto signing strategy.