Review on 🔋 Fiamm 74100 El Grande Battery by Josh Endricko

You can preview how these horns sound on YouTube, but they mostly sound like a domestic car. The horns are always grounded and powered by the horn button. These horns draw less than 10 amps. So they can be "plug and play" for cars that have a wire attached to their OEM horn and if they already use a 10 amp or larger fuse on their horn. However, as Robotic says, you CAN use these horns on vehicles that have two wires connected to the factory horn with the supplied relay. Fiamm describes this with a tiny diagram in the box: - Connect relay terminals 85 and 86 to the original horn wires (polarity doesn't matter as these terminals only power the relay coil) - Connect relay terminal 30 to the supply wire using the Fuse at the built-in 10A fuse (not included) and feed this line from a constant +12V source (such as a car battery). Cables (not included) - Install Fiamm horns on your vehicle, ensuring good ground contact at the mounting points. Use of the included red caps and/or silver bars is optional. It is a good idea to install the pipe outlets pointing slightly downwards to allow drainage and prevent moisture from collecting in the pipes. These necks are great value for money and they sound great too!