I guess the poor old 15 owners get nothing
Yeah that sucks! But I bit the bullet and installed the sync3 from 4D Tech. Worked great, but quite costly. I now have android auto and use google maps, works much better than the Ford NAV system. The unit I installed did not have the NAV module, but it was cheaper. I just updated the software from 2.3 to 3.0. Love it.
2015 Mustang GT 50 Year Anniversary, Ruby Red coupe. Staggered fit 19 inch wheels from American Muscle. Front tires are Sumitomo 245/45 19, rears are Sumitomo 275/40 19. Sound tube deleted, resonator deleted, replaced with h-pipe, Bama tune, custom sub woofer with Rockford Fosgate P3D4 10 inch subwoofer driven by and Alpine MRV 500M mono power amp. Replaced Sync 2 with Sync 3.