I am fairly certain that in Canada most of the Sync features are disabled so all my sync is good for is playing music and making calls lol No text messages, no maps, after the first 3 days i stopped even trying.
The best solution i have is that instead of syncing my phone i bought a 32gb flash drive and connected that via the USB A, and am considering just plugging in a hard drive in the secret USB B port (its behind the glove box after you take it out)lol
I just push AUX, and it goes right to USB and works great 95% of the time. I prefer not to take calls while driving anyway, and keep the bluetooth on my iphone off to save battery life anyway. If i need to i turn it all on and make a call.