Theftlock code?

Anyone have the Theftlock code for a 2000 Grand Am radio? The code was already programmed into the radio when I bought the car used and I could never change the code without knowing the old code. The battery recently went bad while my wife was driving the car and she kept trying to start the car until the battery was completely drained and the radio was locked. I'd rather not have to pay a dealer for this if I don't have to. Thanks.