the entertainment system should have zero access to anything that controls the movement of the car. androidauto apps can't implement self driving functions either. if it's possible, the car manufacturer was incredibly irresponsible and needs to be sued into oblivion. see, the actual problem is not that irresponsible users could implement "self driving apps", but that the entertainment system lacks any real security, is filled with vulnerabilities, and often even have remote access capabilities with bluetooth/wifi/cellular, and bad actors could load malware wirelessly that would kill the passengers and whoever else on the road.