How to Wire a Golf Cart Horn

By Raymond Tong

Adding a horn to a golf cart can greatly increase its presence both on the course and on the roads. With an enormous variety of aftermarket horns available, and all of them relatively straightforward to install, there is no reason to stick with a dull, stock horn. The most common installation is a single wire horn on a cart with no existing horn system, but with careful application and a little knowledge of electronics the same process can easily be adopted for dual wire horns or for horns to be incorporated into existing horn systems.

Step 1

Strip half an inch of insulation from one end of a short wire of any color, a brown wire and the wires attached to the fuse holder.

Step 2

Connect the short wire between the positive terminal of the battery and the inline fuse holder, twisting the wires carefully, yet firmly, together to make a solid connection. Connect the brown wire to the other terminal of the fuse holder in the same way.

Step 3

Crimp the splices to ensure maximum connectivity. Wrap the splices with electrical tape to insulate it. Remember to insert the slow blow fuse into the fuse holder.

Step 4

Connect the other brown wire to the relay trigger coil with brown wire. Connect the other terminal of the relay coil to the horn switch with a brown wire. Ground the horn switch at the fuel gauge bracket with a black wire.

Step 5

Connect the horn to the power terminal of the relay. Affix the horn to the golf cart and ground it on the chassis.

Push the horn switch to test the horn. The completed circuit will activate the relay, which will power the horn.