Constant Power to Horn?

[DiscoveredLC]

I grabbed a universal horn from autozone today, but ran into a problem. The wire to the horn is constantly hot no matter what. The steering wheel isnt the issue cause I disconnected that and it still has power. If I connect the horn it will just continuosly beep.


Others have said it sounds like the relay. ANyone have a similar problem?

 

[DiscoveredLC]

Also, i removed the switch plate on the front of the steering wheel and the horn still had power to it.

 

[85 t runner]

my 85 4runners stock steering wheel has constant power to horn also

 

[inkpot]

Like a lot of other things, the switching is done on the ground side of the circuit.

 

[2ndGenToyotaFan]

Switched ground, you'll need a relay to make it work.

 

[KLF]

...or get a junkyard horn that has 2 contacts on it, like the factory one. The Hellas they put in Mercedes sedans are really nice.

 

[DiscoveredLC]

so, the "universal" horn I bought has two plugs on it. That wouldnt work?

Are there any aftermarket horn that would work, cause i really dont want to go hunting in a junk yard...

 

[KLF]

You just need to isolate it from grounding on the chassis/body when you mount it.

I have Hella Supertones, but I wired in a relay as I was afraid they would draw too much through the stock wiring and burn something up.