Any ideas about what type of shop would work on our air horn? Do chrome shops do repairs on air horns? Ours just stopped working. Very strange. The brakes work just fine so we suspect there is a short somewhere or maybe another corrosion issue. We purchased it and had it installed at a place near Detroit, I believe, but who wants to go near Detroit for anything? Sorry Greg!! I can't see dead heading all that distance just to have the horn repaired if we can have it done on the road. Any ideas? Our truck is 2007 Freightliner.