I have a 1996 Honda Accord with a 1998 Acura TL headunit. My battery died last night, and of course now my stereo needs the security code. I have the security code that was given to me from the place of purchase (5-digit code) but when typed in, nothing happens. The word CODE.E displays on the screen, otherwise the stereo does nothing. Am I forgetting a step, or another button to push? Thanks for any help you can give me.