Everything works great. I've had some time to play with it and can happily report that there hasn't been any issues. Loving CarPlay and how simple it is to use. Maps is awesome. Also, I gained HD radio with the upgrade, that's pretty cool!
The only downsides that I can think of:
- No steering wheel "Talk" or "hang up" controls while CarPlay is on (still works through Bluetooth when not plugged into CarPlay) Not a major deal but a tiny inconvenience. Definitely not a deal breaker. I actually found that enabling "hey Siri" on your phone works well. You can hit the mute button on the steering wheel and use "hey Siri" it works pretty good.
- Loss of pausing or rewinding live radio/xm. Again not a deal breaker for me as I rarely used this feature.
- Loss of aux in port and SD card slot in center console. New USB ports do not have these. This might be a big deal to some people, not so much for me.
Hope this helps.