Dont worry your not aloneUpdate to above. Just decided to update the SYNC 3 with the above map update, as it was only 8GB i thought it would not take very long to do ! how wrong was i. Inserted the USB with the files and the system said "updating system software" i sat in the car with the engine running for 1 hour and 10 minutes waiting for it to complete. After that time i got fed up and left the USB in and turned the engine off and locked the car. Waited 2 minutes and went back and switched the car back on, still got the same message for another 5 minutes so got fed up and switched off and locked the car. Could there be something wrong as it is only 8gb of data and should not take that long to install. Ford technology wins again !.