Hi there, I would also like to know the answer to this question.
We have just got my wife a Fiat 500 yesterday and it came without the sat nav (it still has the dock that goes into the port on the dash).
After reading many posts about the blue&me sat nav that comes with it we're really not interested in that device anyway. I have a Garmin myself and would probably buy another Garmin specifically for her (as all the Tom-Tom's we've had previous to this have died on us at a critical time, left us stranded in the middle of the alps for one.... ) as we have found them to be about the best.
So please can someone point me in the right direction to get some sort of adapter we can use in order to use the docking station.
Thanks in advance
Lee.
PS. if there are no adapters which would make the Garmin compatible I do not mind using another make of device, just so long as it is a decent and full functional device (not the Tom-Tom rubbish).
Thanks again!