I want to know the answer to the following question:
What network is used to contact concierge and emergency assitance services as well as getting navigational and entetainment information?
All the background I'm provided with is that "Researchers in 2011 were even able to use a malicious compact disc in a car's stereo system as a successful attack vector, and cars with built-in voice recognition or remote assistance features have onboard microphones which could be used for eavesdropping.". Is that enough to answer the question?