Just make sure you are not making the same mistake I did. Had my motor home serviced. Just before I found the air horn did not work so I added that to the list of things to fix/repair. When I picked it up the service manager told me about the switch on the dash to turn the horn on/off. After owning the coach for six years was really embarrassed that I had forgotten about the switch because I never turned it off. I think.our 4 leg fury friend was the guilty one.