In the trunk, remove the back panel by unscrewing the four plastic knobs on the roof of the trunk, there is the entire fuse box for the vehicle
under the fuses beneath the hood. look back and it has a cover on it that you have to remove. then 2 fuse boxes. relays are beneath there. horn relay should be on far right.
Carefully
where is the horns for 1978 cadillac
Under the battery tray
horn don't work a 1992 elderado, where is it or where is fuse panel for horn ?
To replace the horn on a 1999 Cadillac DeVille Concours, first, disconnect the negative battery terminal to ensure safety. Remove the engine cover if necessary, then locate the horn, which is typically mounted behind the front grille or in the engine compartment. Disconnect the wiring harness from the horn and unbolt it from its mount. Install the new horn by reversing the steps, ensuring all connections are secure before reconnecting the battery.
on the middle of the steering wheel
Remove the plastic "filler panel" between the radiator mount (top) and the front grill on the driver side. They are attached to the radiator mount (top)and are not visible unless the "panel" has been removed.
The 1992 Chevrolet truck horn is located in the front of the engine compartment. The horn will be on the right hand side of the radiator.
The horn is located behind the bumper, on the passenger side of the radiator support.
on the car