Code Entry as Follows:
Switch Radio On - Display Shows
" CODE - - - - "
Press preset " 1 " repeatedly for 1st Digit
Press preset " 2 " repeatedly for 2nd Digit
Press preset " 3 " repeatedly for 3rd Digit
Press preset " 4 " repeatedly for 4th Digit
If the correct code number is now shown
Press Tuning Up Button " > " To Enter
hay88, November 2011