KaiK,  What model have you got and when did you get your TomTom.   I bought mine with the car back in August.   At the time I was told by Lipscombe's parts department that it was the latest TomTom 2 Live 4GB which has been developed to be compatible for Abarths.    I thought that even the Dealers who post on here had said it was unlikely that we would ever see a compatible device for our cars.   

If I thought that there was something out there that worked I would probably try and sell mine and buy the correct one.   Don't get me wrong there is nothing wrong with the TomTom but I bought it to be compatible expecting it to work with voice and steering wheel controls and not compete with the sound system when it is issuing directions.