Radio security code calculator for V Series for ALL (000000 - 999999) serial numbers. If Ford vehicle battery disconnected. Youll need to re-enter the radio security code. If youve lost your Ford radio code, you can recover it quickly and easily. You need to do is: - Remove the stereo from the dashboard. - See the unit V serial number. - Input V serial number to Radio Security Code for Ford V Follow steps by step to enter security code: - Switch on the Radio. - Display CODE with " _ _ _ _". - Press " 1 " button for 1st Digit. - Press " 2 " button for 2nd Digit. - Press " 3 " button for 3rd Digit. - Press " 4 " button for 4th Digit.