Hi
thank you for showing me how to fix the radio after I had changed my battery. I noticed that the 3 digit code wasn't the last 3 digits of VIN and I got the code from the dealer that I had purchased . Then I followed the instructions given above by feebee62 and it worked out well.
press TUNE ^ button and number 1 button to display the screen where the codes had to be entered, after following all the above steps it worked out.
thank you