I'm sure there is already a thread for this but I have a 2012 civic si and my anti theft to the radio kicked in . how what buttons do I press to get the stereo to turn on and get the serial number and put the code in?

 

The serial number can be found on the side of your glovebox. Open the glovebox and it will be on the side, on the outside of the glovebox. Hard to explain but you can see a photo in this picture.

This is where my code was located.

 

Hold 1 and 6 until radio off. Turn on radio while holding 1 and 6. Type in code.