take the pins of the front right light and look down and it will be there. size of the bolt is 10" mm PS. i put a horn of a Cadillac on my is sound good ( impala ls 05)
Begin by removing the wiring harness from your 2005 Chevrolet Impala horn. Remove the horn retaining bolts. The horn will come off.
take it to a car shop and tell them you need a new horn.
It is done through the radio options
It's on the steering wheel, where the airbag is located. http://gtcarlot.com/data/Chevrolet/Impala/2005/11329687/Steering%20Wheel-49683885.html
It is important to understand why the warning lights come on. The airbag light will come on in any car if there is an issue with any airbag in the car, an issue with the wiring to or from the air bags, an issue with the horn, or the wiring of the horn.
the fuse
The horn relay will be mounted up under the dash. It is on the drivers side close to the kick panel.
It is in the air horn (tube) that goes from the air filter housing to the throttle plate.
There are two horns used on the 2001 Chevy Tahoe. They are mounted on each side of the radiator support.
any horn will work from the junkyard.
The fuse is next to battery; under the horn, in the opening in the fender well.
It is in the air horn between the air filter and the throttle body.