With the ignition switched ON.
Hold down the AS button whilst switching the radio ON.
The display will then show 10 _ _ _ _
Input the radio code, Then press AS to activate.
Regards, Steve. 
 i did all of them my code not work second time tried its not its not shown 10----- like this code so i cant put new code any one help pls
                
 alex
                
 March 2011