In your book pack there should be a 4 digit code. You need to turn on the ignition and then press and hold both the power and AS button until the safe changes to 10----. Use button 1 for the first number, button 2 for the second number, button 3 for the third number and button 4 for the fourth number. Then press and hold the AS button again and the radio should beep and fire into life. If you enter the wrong number you will be locked out for 20 minutes. If you don't have the code you will have to contact a vauxhall dealership who can trace it from your VIN number.
Richard
February 2007