Disconnected battery & need help with stereo

I disconnected my battery and now my stereo is locked!  Does anyone know how to go about getting it working again?

Try the following and then post back the numbers, I will see if my friend can get you the unlock code.
 
 1. Turn the ignition ON (The radio displays LOC)
2. Press and hold presets buttons 2 & 3 or 1 & 4 for approximately 10 seconds.
3. The radio display changes from LOC to a three-digit number. Write this number down.
4. Don’t take long, fifteen seconds max before the next step.
5. Press the AM/FM button
6. The radio display changes to another three-digit number. Write this number to the right of the first one.