Hey everbody! yea, the horn on my 1992 300E is not working, and it needs a new inspection sticker!! I tried checking the voltage at the two metal screws that hold the current wires that feed the top horn and I got no voltage. So I am supposing either A.)This is not the place to check the voltage or B.)Something else is broken. Is there some fuse that regulates the horn? Or perhaps a relay of some kind? Any help would greatly be appreciated!