I have a pontiac grand am gt 2002.

Welcome to AF badbones1298 !

I realy hate this feature on GMs.
Unless you have the code that was used to lock your monsoon radio you might have a useless radio.

I suggest looking in your cars manual in the glovebox. Sometimes people right it in there(previous owner(s)). If not you can try guessing it, its either a 3-4 digit code. I think default is 000 or 0000 could even be 1's for your year. :dunno:

Otherwise you'll have to goto the stealership and have it replaced/repaired. Most have to send it off to get it repaired/replaced at a small fee. The monsoon is pricey new!

Good Luck

Also, No need to post duplicate threads, your other will be closed.