If the radio say's "locked" and shows the number 10 in the bottom left corner.
turn on radio, press and hold number 6 for 30 - 40 seconds. turn off and then back on and the word "code" should come back on. YOU ONLY HAVE 3 MORE ATTEMPS AT PUTTING IN THE CODE BEFORE YOU ARE LOCKED OUT FOR GOOD. so make sure you get the right code from a ford dealership, they will take out the stereo, look at the serial number and get the code for you. they ussualy charge £10.
hope this works for you. Nick
Nick Saunders, January 2009