How can I reset my radio when it wont accept the a/t code ?

I recently purchased a 2006 Honda Accord LAST year (09) and I recently replaced the battery....soo...i reset the RADIO a/t security code using the security code (which I found
in my glovebox) and now it STILL will not allow me to play the radio and just does not seem to recognize my code!!!>>> So I disconnected the battery again and re-entered the code and it now says "Error 1" or "Error 2"!!! WHat to do so I can listen to the radio!!!!???