Wiring horn to brakes? Anyone ever done this?

[KBCobra95]

I have heard (and seen) a few people that have does this as pranks and always wanted to do it to someone myself! How would you go about wiring a car's horn to the brakes so that everytime you mash them the horn goes off?

 

[mootang]

I would imagine you would just wire the horn into the wire running to the brake light but I couldn't tell you for sure.

that would deffinately be funny as hell! as long as it doesn't cause an accident.

 

[timeless2]

What kind of car are you wanting to do this to? Mustang?

 

[The Green GT]

I saw a video where they did it to someones car. It was awesome. He tapped the brakes, then SLAMMED the brakes.


I would think you could some how just wire another horn into the brake wires, but that would more than likely blow a fuse.

 

[BlueOvalStangGT]

I want to know too, I saw the vid where they did this to a CRX.

 

[KBCobra95]

I want to wire one up to my fiance's 99 cavalier, and my co workers 2000 chevy pickup

 

[IEatRiceGT]

I want to see a vid!? Link?

 

[LoudToy958]

I did the same thing to someones turn signal once. Not to hard at all. You just have to make sure the polarity is correct. I think a mustang horn rests at 12V, and is activated by ground. The brake wire is the oposite in a stang. This would result in the need for a relay to change the 12V brake to ground when you depress it. I could walk you through it if your willing to get a vid of the victim.

 

[94-302-vert]

That would be hilarious...

But you would need to put a switch in the pass footwell so it only happens when you want it to... make it really hard to figure out....

 

[Pokageek]

Yea real funny until someone gets into an accident over it.

 

[HISSIN50]

Shane is right on about the polarity issue, as I recall.