I recently bought one too from Fry's I believe it was from DP Video. I had the same problem and the people their told me that they would have to customly shave my dash bizel inorder to make the unit to fit. I would recommend shaving it yourself or to return it. I returned it since I did not want to mess with the stock dash so when I sell the car I can take the 7" DVD player with me and put the stock one back on without the weird shavings that was from the previous 7" player.
Good luck with that.
