For de radio hold the AS button for several seconds You'll get ten attemps to fill in de code. First tap de "1" key as many times to reach the first number of the code. Then tap the "2" key for the second number of the code then the "3" and the "4" Then the AS key for serverl seconds and ready. If you have a CD changer use the "o" key instead of the AS key
René M, September 2008