Qui peut m'aider à retrouver un code auto-radio ?

This is a car radio of origin of a Kangoo (22DC279/62 model) purchased new security code K739 is apparently (read the side of the car radio) My car radio always shows "error" following a false manip by me or erroneous code entry. many thanks for your help = code 4522 You must hold at the end to store your code. IF YOU DONT HAVE ¬ KEY THEN PUSH THUMBWHEEL IN AND SOME HAVE {A¬} KEY Turn on the radio and the display will show 'CODE' Use the steering controls for code entry. Press the [ ¬] button then rotate the thumb wheel for the correct first digit Press the [ ¬] button then rotate the thumb wheel for the correct second digit Press the [ ¬] button then rotate the thumb wheel for the correct third digit Press the [ ¬] button then rotate the thumb wheel for the correct fourth digit If the correct code is now shown on screen, press and hold the [ ¬] button for up to 10 seconds to store the code FOR NO STEERING CONTROL press the first preset button for the 1st digit, second button for the 2nd digit third button for 3rd digit forth button for 4th digit then press and HOLD button 6 to store. for 10 seconds and on some it's hold 5 to store. note the radio does not lockout after a wrong code entry it only doubles the time to wait before the next retry...if a wrong code is entered it will display error then after the delay should display "0000")