I am glad to see that GM is moving away from their own designed entertainment/navigation system to a standard Android Automotive package for their EV's. I think that most car manufacturers have had problems with the design and up keep of their own proprietary systems. My question is whether there will be a monthly charge to use the system? Does it need access to the internet? If so, does it require the purchase of the car's hot spot system or will it use the data from our own cell phone?