AOLIHAN Horn Button Switch Kit — 12V Waterproof 80A Relay Wiring Harness with Momentary Push-Button (Black)

This compact kit brings together a sealed 80A relay, pre-wired harnesses, a momentary push-button and protective tubing so you can add a loud auxiliary horn without complicated wiring. All necessary parts are included: relay, harness, threaded leather protective tube, blade fuse and box, tie wrap, instructions and an adhesive-backed button switch. Components are engineered for outdoor use with water- and dust-resistant elements to protect the electrical connections.

How durable is the relay and wiring in wet conditions?

The relay uses all-copper pins and a sealed transparent shell to reduce corrosion risk and keep moisture out of the contacts. Wires are routed through a threaded leather-style protective tubing that adds insulation and abrasion resistance for exposed runs.

• 80A sealed relay with copper movement for reliable conductivity
• Transparent, waterproof relay housing to monitor internals
• Threaded leather pipe sleeving for wire protection against water and abrasion
• Blade fuse and enclosed fuse box for circuit protection

How easy is installation for a DIYer or mechanic?

The kit is pre-wired and includes a long push-button lead and adhesive mounting, cutting installation time. Standard terminals and the included instructions let users connect the horn, battery, and ground without fabricating custom harnesses.

• Pre-wired harness with 1.5 m positive lead and 3 m button wire
• Adhesive-backed button avoids drilling; fits on dash or panel
• Included relay, fuse box and tie wraps for tidy routing
• Momentary switch wiring set up for push-to-hold operation

What are the switch and button specifications?

The push-button is a momentary (push-and-hold) type, made from ABS plastic, sized to fit comfortably under a finger and designed for repeated use. Its adhesive backing enables non-invasive mounting and the long wire gives flexibility in placement.

• Button diameter: 28 mm (1.1 in); thickness: 10 mm (0.4 in)
• Housing color: black ABS plastic with durable finish
• Momentary action: press and hold to activate horn, release to stop
• 3 m button lead for flexible dashboard or cockpit placement

Will this work with my vehicle or boat's electrical system?

The harness is made for any 12V system and works with most automotive and marine auxiliary horns. Use the included blade fuse and ensure proper grounding; if you have high-current accessories, confirm compatibility with an 80A relay rating.

• Compatible with 12V automotive and marine systems
• Suitable for most train-style or aftermarket horns requiring relay switching
• 80A relay supports high-current horn coils without overloading switch circuit
• Includes fuse for added circuit safety and protection

Who is this for? AOLIHAN's Waterproof Horn Button Switch kit is aimed at car and boat owners, installers and DIY enthusiasts who want a straightforward, durable way to add or replace an auxiliary horn. It's ideal when you need a compact, weather-resistant solution that minimizes panel modification, offers a neat pre-wired setup, and delivers the switching capacity to handle loud train-style horns. Professionals will appreciate the high-current relay and corrosion-resistant details; hobbyists will value the adhesive button, long leads and clear instructions for quick installation.