Something I neglected to post in the summary: smart phone/Google Maps connected to dash is much better technology than in-car GPS systems. Our 2014 XTS GPS data base is 5 years out of date and expensive to update. My Android phone is connected to the car's dash display and audio systems for voice calls (very convenient) but I can't use Google Maps which would give me an up-to-date map data base. 2016 XTS can do that but not the 2014. That's another "Disruptive Technology" where no one will buy in-car GPS systems anymore. Smart phone replaced wrist watches and now in-car GPS too. Smart phone also has the advantage of having all your contacts available for voice or navigation in ANY car that can pair with it and has the app to display the smart phone screen.
Smart phone on the Internet also eliminates the need to find a hot spot if you don't record your hotel location accurately.
If anyone knows a solution that would connect Google Maps on Android to 2014 XTS display and audio I'd like to hear it. Or, if iphone can do it, I'd (reluctantly!) spring for an iphone.