can anyone help me out, i replaced the Battery on my Honda Accord 2004 and since...
 

...then my radio has been coded.? My Serial Number is 12341638















Refrence number is CQ-EH1260Z















Model number 39175-SDA-A110















Manufacture Date August 2003

This happend to me before, if you still have your original owners manual its written on a little business card on there. if not your going to have to call your dealership but its a quick easy process (or it was for me)

Take it to a Honda dealer with your rego papers for prove of ownership and they will give you the code.