My wife's iPhone 5 works, My 6s does not. How do I set up CarPlay. I tried using a USB cable...not getting anywhere. Help. Thanks, Frank 2017 Mac S

 

Silly question, but is your phone unlocked? It won't engage unless the phone is unlocked. Another, try another cable. Maybe your wife's? Another, turn off Wi-Fi. I have an iPhone 6. An old one. Works fine. I do need a short flexible cable with a 90 degree connector so it fits in the center console. But, I believe the 6S is longer. Let us know.