Hello, Can anyone help with a radio code and if so how to enter it in, just purchased a 97 E420 benz and put a new batter in now its asking for a radio code, i only have the vin number cause im not able to pull the radio out the vin#WDBJF72R8VA205790. And do you know also once i enter the code is there a certain button i need to push once i enter the code?