Hi everybody there!
If this can be helpful, I found the code for my Honda Civic 2003 radio, in a label pasted in the glove compartment.

Regards,

Efren

Hi, I live in Guatemala City.

I really appreciate your help sending me the code since when I changed the battery of my Honda Civic LX 2003, the radio was locked.
The serial Nr. is U2830 L1438.
You can reach me at efren.menchu@gmail.com

Thanks so much.

Efren