Horns & Wiring Diagram - YouTube Click to view on Bing3:33Today's anti-theft systems are tightly integrated to the horns. It is no longer an option of whether to replace the electrical horn unit or not. Anti-theft as well as vehicle keyless entry systemsAuthor: ADPTrainingViews: 358K How to wire a car horn - YouTube Click to view on Bing7:33basic wiring guys, hope you guys like whats going on, we will make progress together!! i will show a more advanced circuit with relays in the future.Author: Jamauto techViews: 190K How to Wire a Car Horn | It Still Runs How to Wire a Car Horn by K.K. Lowell . Wiring a horn the right way, whether to replace a non-working horn, or to install a new one to a custom vehicle is a job that a competent do-it-your self type should be able to complete in an hour or two. Step 1. Disconnect the negative terminal from the battery. How to Wire a Boat Horn | Our Pastimes Wiring for a boat horn is a simple electrical circuit with a switch. Protecting the wire connections from the elements with a tight wrap of electrical tape assures they don't corrode due to water penetration. Installing a boat horn is a simple process once you understand where to connect the wires. Automotive Horns | GTSparkplugs Wiring up horns are pretty easy since your car likely has one already. Some cars have simple wiring that does not use a relay but most have the relay. Start with a wiring diagram of your car (or Motorcycle, RV, etc.) and see how they hook it up.