FYI for those of you with Sync 3. I use Android Auto with an aftermarket radio and it's awesome.
http://jalopnik.com/fords-will-add-android-auto-and-apple-carplay-with-an-u-1795370940
http://jalopnik.com/fords-will-add-android-auto-and-apple-carplay-with-an-u-1795370940