Hi all, i have a 2006 1.4 stilo and im replacing the boring standard headunit with a 7" touchscreen dvd/sat nav unit. I have everything ready to fit but i can't get the original unit out !! I've had it out once in the past using the removal keys but they dont seem to work this time ... is there any other way or tool i could use to get it out without damaging it or the car. Many Thanks, Greg.