hi post the numbers/letters from below the main barcode something like 7700xxxxxxtt123 or 8200xxxxtt123 or the security code like Q123 or T0U123 can be found in a small box then i can help you
Annie98 your code 4227 you must hold at the end to store code Code Entry as Follows:
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