The first time I connected my phone (with data plan and entune app) the stereo updated its firmware. Which was good, since it was crashing every few seconds when I first paired it with my phone. Apparently having too may contacts will cause this. once I turned off the auto contact sync, it allowed it enough time to sync, and I have not had a single crash since then, with my contact transfer back on.
For the maps, you just have to go into the dealer and throw some money at them and they will give you an update SD card to put in the dash. I have not updated mine since I prefer to use Waze on my phone.
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