disconnect the battery wait a min. then try it again

Or pull the radio out overnight and put it back in in the morning. Not sure how long exactly it needs to be out.

+1 snowboarder714

I would just get a cheap double din stereo. much better than a stock radio.

Me and a buddy had the same problem. We found stickers all over the car in random places and it was three numbers and it was the code for the radio.

Try looking under your radio under the panels.

The code should be 4 digits.