my car radio/cd code doesn't work on my Ford KA Zetec?

Code Entry as Follows:
Switch Radio On - Display Shows
" CODE "
Press Preset " 1 " and a " 0 " will appear
Press Tuning Up Button " > " For Correct Digit
Press Preset " 1 " to Enter
Press Tuning Up Button " > " For Correct Digit
Press Preset " 1 " to Enter
Press Tuning Up Button " > " For Correct Digit
Press Preset " 1 " to Enter
Press Tuning Up Button " > " For Correct Digit
If the correct code number is now shown
Press Preset " 1 " to Enter

hay88
May 2011