Horn

[bigge31566]

Thinking of changing my horn to a 2000 plus Cadillac dual horn, Is there anything I have to do special or can it even be done

 

[SlickGTP]

Depends on the power requirements of the horn, but I'd imagine it could be done. Typically I believe they all just require 12 volts. You might have to graft a new connector onto the wire that goes to the current horn set up to fit the new horns.

 

[bucket]

Stock horns are self grounding, the newer ones are wired with a ground. So you just need the pigtails for the horns, one wire is 12v (not constant of course) and the other just gets grounded to the body.

 

[MadOgre]

I bought two brandnew GM replacement horns and they came with the necessary pigtails and apparently you can use either lead for power or for ground

 

[bigge31566]

ok seen some new ones on ebay but no pigtail

 

[RetroC10Sport]

I have 4 note Caddy horns on my '89. Nothing special, had to make grounds and change the connectors.

 

[MadOgre]

So I wired up my new GM replacement horns as per instructions that came with them and nothing!

Lead comes into first horn, the ground wire goes to the incoming lead for second horn and then grounded to frame from second horn. as per instructions. NOTHING !

So then im reading on here someone says the horn button in the steering wheel is the ground side of the system. So im thinking well its not gonna work if both sides are grounded lol. So I put the final ground wire to the positive battery post. NOTHING !

So im tinkering with the horn button and discover that while tinkering, with the horns grounded that there is voltage at the horn button. This means the power source comes through the horn button and out to the the horns.

The problem lies with the install instructions that came with the horns. Looking at one of my downloaded schematics for under the hood it shows each horn grounded instead of using the first horn as a circuit.

So I ground each horn and supply power to both horns with one lead that comes from the horn button, and, ............ SUCCESS !

They both work amazing now.