I need to unlock the radio in my 2000 intrigue

Question

Hi,

I just bought a 2000 intrigue and the radio is locked. I did the 2&3 buttons on the radio and it gave me a 3 digit code. I am assuming that is the code to unlock my radio but I don't know how to enter it in. My preset buttons only go to 5 and the first digit is 7. Any help?