You're joking, right? The systems are locked up tight. I did manage to hack into my Porsche Macan's system so that I could turn Apple CarPlay on (it's disabled in the Macan, but supported by the system because the unit is shared with the VW Atlas which has CarPlay), but it involved a pretty complicated jailbreak.
You're joking, right?
Only 3.1415% joking. I predict people will eventually get credits for saying things like, "Brought to you by Carl's Jr." in their car, bonus if the kids also repeat it. But seriously I figured someone would have found Easter-eggs by now that allowed some form of super-duper-root similar to windows god-mode.
I am honestly surprised that car manufacturers have not been sued into oblivion for adding distractions.
What generation had CarPlay disabled? It works very nicely in 95B.2 and .3, and the pre-facelift 95B models with PCM 3 didn't support CarPlay at all without an adapter, did they?
I know full-screen CarPlay isn't supported without a jailbreak, but I don't care about that myself so haven't done it.