It doesn't work that way at all in my VW.I recently rented a car that had carplay. I connected to the car with usb to charge my phone and nothing I did (including constantly selecting "forget this car" prevented me from using carplay).
I had google maps going, but wanted to listen to fm radio. Everytime Google Maps had something to say, the radio stopped and whatever music is on my iPhone started to play with the Google Maps talking on top of that. Then it wouldn't switch back to FM.
It was a terrible system.
[doublepost=1479313981][/doublepost]Wireless? Anyone? The lightning cable connection is a pain in the butt as it gets wrapped around the shifter, my legs, etc. It seems like it is always in the way no matter what I do.