2017 86 DISPLAY AUDIO W/ NAV on x<2016?
 

Do we know if we can plug and play the 2017 DISPLAY AUDIO WITH NAVIGATION on our first model vehicles?

Probably, doubt they changed the wiring harness aside from the addition of steering wheel controls, but why would you want to? The stock head units in the 2017s are just about as obnoxious as the stock head units have always been. May want to check a few threads and read a few reviews before pulling the trigger on that, you can get far better for a fraction of the price.