GMC Sonoma Horn

My Horn Does Not Work When I Press Horn Pad On The Steering Wheel But It Sounds When I Press The Security Button On Mt Key Pad

My Horn Doesn't Work When I Press On The Steering Wheel Button But The Horn Sounds When I Activate The Security Button On My Key Fob.

How Do I Replace The Horn Switch On A 2000 Gmc Sonoma. The Horns Are Good, The Fuse Is Good, The Relay Is Good. The Only Other Thing I Can...