The horn on my 95 Riviera activates on its own>>>>

Most likely you are correct. Sounds like something in the steering column. Seek professiona l assistance at a local certified repair shop. Best not to mess with the airbag/ clockspring assm. yourself

Thanks>>>I hopefullly will find a replacement in the savage yard.

The contacts under the horn pad on the steering wheel get "bent" down and make continuous contact. Leave the fuse out or lift up the pad and fix. Dealer charged me one hour of labor plus fuse. Air bag could cause an issue if you do it your self.