Hi, I have 2005 Honda Accord elx ,last week I changed new battery after that my audio system is not working ,it is showing code error.How I'll get it back please help me.

The code that you need may be in the owners manual on a sticker, or on a sticker in the glove box or in the trunk. Some dealers will charge you so shop around, it may help to pull the radio and get the serial number if you have to go to the dealer. You will need proof that the car is yours also.

Hi, I have 2005 Honda Accord elx ,last week i changed new battery after that my audio system is not working ,it is showing code error.How i'll get it back please help me.
You should have a card(like a business card) in your owners manual packet with the code on it. I have the same car and I do in mine.