your code 8862 you must hold at end to store the 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
Your bar code '7700 433 946....', there should be another 4 digits following. letters that look like Q345.. This is used to calculate the code. This is known as the pre-code or security number, it can be in other places on the label.