Need radio code for 2007 honda accord serial #12367949, had to disconnect battery to replace head lamp

If an audio unit with theft protection is disconnected from electrical power, you must enter a unique code number into the unit or it will not work. This code and the audio unit’s serial number are listed on the anti-theft ID card that comes with the vehicle. If this card is lost, you must obtain the audio unit serial number in order to get the radio code. Some newer vehicles allow you to retrieve the audio unit serial number electronically from the radio (some people say that they find the code on a sticker in the glove compartment, but I wouldn't count on that). Refer to your owner’s manual for the specific procedure (the following usually will work: Turn the radio off. Push the preset 1, preset 6, and power buttons at the same time, then quickly release. The number will come up in two sets)
Once you have the audio unit serial number, you can call Auto Customer Service at (800) 999-1009 or have the dealer look up the radio code.
Hope this helps you.

There might be a sticker on the inside of the glove box or under the fuse box cover. If there is not one there with your radio code, you could log on to radio-code.com. You can get your radio code there for a small fee of $12.00 which is better them the dealer and you get to keep the code. Good luck and hope the code is in your glove box.