Horn Relay 05 F350

I am looking for the horn relay on a 2005 F 350. I have contacted several area dealers and they are no help. Some dealers say it in the fuse panel under the dash but I have remove all the relays and the horn still sounds. can anyone help ?

Fuse 37 in the under hood fuse block controls the current to horn. You could pull it. My wiring componet locator says the connection is on the left side under the dash for the relay.

Fuse 37 in the under hood fuse block controls the current to horn. You could pull it. My wiring componet locator says the connection is on the left side under the dash for the relay.

Thanks for your help. the fuse info was right on the money. The horn relay is in the fuse panel under the left side of the dash. You have to remove the 4 bolts holding the panel to the dash, pull it down, and unplug all the wire harnesses. Now the fuse panel is removed it will split into 2 pieces and the horn relay is inside. Found this out by trial and error. Not one dealer had the same answer to my question. Thanks again.......