most? where did you come up with your data? I don't know one friend that has CarPlay honestly. I use my phone as a headless deck. But im not one of the norm. I use my own dsp connected to a dac and my phone. I bypass my Audi infotainment system as it messes with the eq when you turn up the volume. I don't have CarPlay on it either its a 2010 Audi A4.I am little eager to know where people will use this since most of the Car Infotainment system have Apple CarPlay, so why would anybody want to hang their iPhone in front of them.
A better thing to say is anyone that has bought a car the last 2 years might have CarPlay...