The best replacement for ford sync is onstar.

The best alternatives to ford sync are rated as following:
★★★★★  onstar
★★★  uconnect
★★★  toyota entune
★★  chevy mylink
★★  gm onstar
★★  myford touch
★  chrysler uconnect

Your alternative for ford sync is not listed? Suggest!
Speaking about ford sync, one probably shouldn't forget about galaxy s4.

Other search terms related to ford sync and their ratings are:

★★★★★ galaxy s4
★★★ aftermarket stereo
★★★ iphone music
droid 2
You have in mind a companion for ford sync and it is not yet here? Propose!

Google Trends

Scale is based on the average worldwide traffic of ford sync in all years. Click on graph for more.
ford sync