Phildeeuk your code 0731 you must hold at end to store code. Switch Radio On - Display Shows " 0000 " with the 1st digit flashing Rotate " Thumbwheel " For Correct Digit Press " " On The Stalk Control To Enter Rotate " Thumbwheel " For Correct Digit Press " " On The Stalk Control To Enter Rotate " Thumbwheel " For Correct Digit Press " " On The Stalk Control To Enter Rotate " Thumbwheel " For Correct Digit If the correct code number is now shown Press And Hold " " Until A Beep Is Heard