Review on 🔘 12V 16mm LED Metal Momentary Push Button Switch for Car Horn - Viping Car Horn Button Switch Reset Switch Button Metal Speaker Horn Switch Power Metal Toggle Switch Car Boat Motorcycle DIY Switch by Christopher Buck

okay it's a horn how hard to install! So I used a micrometer to make sure the hole in my dash was the right size, 5/8" works great. Then plug it in! The picture of the wiring in this description is almost useless. I get that some want the led to be on all the time, others maybe when the headlights are on.The brown wire is dumb, nobody should always turn on the horn so you can ignore the brown wire.Red and black just control the circuitry -LED..White and blue control the horn.White means power to the horn circuit, blue means power to the horn when the button is pressed.Also ensure your horn draws no more than 3 amps if you need a relay.