In-car systems such as this are a hopeless battle. There is absurd vendor lock-in because there are a whole of 2-3 companies who have built a technology base big enough to be able to offer a system that can be custom assembled for a particular year and model of car. This will then be deployed in about 100,000 cars at best and will never ever be updated or serviced after about 6 months unless there is a vehicle safety issue.
I'm not sure what the exact solution is, but in one way or another there needs to be a mandatory open standard to allow a 3rd party device to show information on vehicle displays, receive input from vehicle control interfaces (steering wheel buttons, touchscreens, etc) and interact with other auxillary systems. We have things like CarPlay and Android Auto, but despite manufactures pledging broad support, very few cars are actually being sold with such capability.