How do i reprogramme the radio on my audi tt please

What you may do is....turn the car off and then turn the radio on.. don't do anything with the car for one hour. meaning leave the radio on for one full hour and the radio itself will reset itself. the radio will turn off.turn the radio on..on the radio it will say... BOSE..press and hold both button RDS and FM2 until the radio resets to 0000 ..then enter in your code..once you enter your code press and hold the two buttons again..this will work...