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Originally posted by Ste W
The one wire is probably a switched earth. get your multimeter on it and see if it makes a contact between the 'chassis' of the boss and that wire. I have an omp boss on my kitcar and the horn is deciding to stick lately.

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Originally posted by evans_corsab
i remember you asking me about this , mines omp and doesnt look like yours :\ , indicator cancelation should be on the steering coloum not the boss , but the horn is a puzzle ! did you get a horn push with the boss kit ? because my horn push has 2 terminals on the back so the red wire the horn one goes onto it and a green earth goes to that silver ring as seen in your picture and has a tab on it . just thinking you have to run your normal horn wire through the boss and onto the horn push so is that wire on the boss now an earth

[Edited on 13-04-2009 by evans_corsab]

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Originally posted by john_c20xe
the one wire should be for the horn, plugs into the horn and then the horn just earths out on the boss,, beep beep

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Originally posted by scaron5188
the metal bit that sticks out of the bottom of the boss cancels the indicators when turning the steering wheel. and the wire is for the horn, but, if your car has an airbag, and the boss is a non airbag type then it wont work with the wire on the boss. i had to wire the horn to the boss with longer wire so it went round when turning, i now...bit of a bodge...but it works lol

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Originally posted by Mike B
That boss is the same as mine mate. The single wire is the live and it's earthed by the silver ring on the left on the bottom pic. The wire is attached to the brass (I think) ring on the back of the boss, when you put the boss in place there's a little spring loaded pin if you like which will hit the brass ring. You need to find the horn wiring and connect the live upto the spring loaded pin, put a bit of solder on it. When you're putting the horn button in place you have 2 connections, connect the wire to one then ideally you need another small piece of wire with female spade connectors on each end and connect the other connection to the little tab on the silver ring I mentioned earlier.

One slight problem I've had with mine tho, well I say slight, my horn's stopped working It seems like the brass ring has worn down. It stopped working in stages, first I notice it wouldn't work when the wheel was between about 10 o'clock and 2 o'clock and the it just seemed to get worse and now it won't work at all.I'm gonna try running some solder over the brass ring and hope that sorts it out. Might be an idea to try that before you fit it to make it a bit easier if it does go wrong in future

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