1998 Honda civic anti theft reset procedure

#1

I own a 1998 Honda Civic HX that I recently cleaned up the terminals on my battery for winter. While doing so I removed both cables from the battery and after I was done I noticed the anti theft light is now illuminated. I purchased the car used and the radio that came with the car was toast so I replaced that too. I’m just wondering is there another way to reset the system without using the factory radio and the code that’s in the car? Any help would be great and thanks in advance. Steve