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GRNDZRO Electronics Products

LOUD HORN WIRING HARNESS KITS

Upgrade your motorcycle or vehicle's horn system with GRNDZRO Loud Horn Wiring Harness Kits. Designed for single air horns, twin dual-tone horns, and selectable horn modes, our plug-and-play wiring harnesses deliver reliable electrical connections with no wire splicing required. Built for clean, hassle-free motorcycle and automotive horn upgrades.

Single Loud Horn Harness Kit - SLH1-AMC

SINGLE LOUD HORN HARNESS KIT

Product Code: SLH1-AMC


For Horns with Single Air Compressor

 

The GRNDZRO Single Loud Horn Harness Kit is designed for horns that use a single air compressor, including compact air horns and single-compressor air horns. It connects the aftermarket air horn to the battery and stock horn triggers without requiring wire splicing.


Application: Motorcycle & Automotive
Ideal For: Compact Air Horns | Single-Compressor Air Horns
Features: Plug & Play | Universal | No Splices

Twin Loud Horn Harness Kit - TLH1-MC

TWIN LOUD HORN HARNESS KIT

Product Code: TLH1-MC


For Twin Horns with Dual Tone


The GRNDZRO Twin Loud Horn Harness Kit is designed for dual-tone aftermarket horns. It provides connections for the aftermarket loud horns, stock horn triggers, and battery for a clean and organized installation.


It is ideal for riders upgrading to dual disc horns or dual snail horns.


Application: Motorcycle
Ideal For: Dual Disc Horns | Dual Snail Horns
Features: Plug & Play | Universal | No Splices

DUAL HORN MODE HARNESS KIT  - DHM1-MC

DUAL HORN MODE HARNESS KIT

Product Code: DHM1-MC


For Dual-Tone Horns with Stock Horn Switcher


The GRNDZRO Dual Horn Mode Harness Kit gives riders the ability to switch between an aftermarket twin or loud horn setup and the motorcycle's single stock horn.


The harness provides connections for the aftermarket loud horns, stock horn, stock horn triggers, battery, and mode switcher.


Application: Motorcycle
Ideal For: Dual-Tone Loud Horn + Stock Horn Mode Switching
Features: Plug & Play | Universal | No Splices | Mode Switcher

VESPA LOUD HORN WIRING HARNESS KIT - VLHUS1-MC / VLHFB1-MC

VESPA LOUD HORN WIRING HARNESS KIT

Product Codes: VLHUS1-MC / VLHFB1-MC


For Dual-Tone Loud Horn Upgrade


The GRNDZRO Vespa Loud Horn Wiring Harness Kit is designed for dual-tone loud horn upgrades using dual disc or dual snail horns.


Two length variants are available to match the location of the Vespa battery. 


VLHUS1-MC: Under-Seat Mounted Battery
VLHFB1-MC: Footboard Mounted Battery


Application: Vespa
Ideal For: Dual Disc Horns | Dual Snail Horns
Features: Plug & Play | Universal | No Splices | Two Length Variants

TWIN LOUD HORN HARNESS KIT AUTOMOTIVE - TLH1-A

TWIN LOUD HORN HARNESS KIT AUTOMOTIVE

Product Code: TLH1-A


For Twin Horns with Dual-Tone Upgrade


The GRNDZRO Twin Loud Horn Harness Kit Automotive is designed for aftermarket dual-tone horns, including dual disc and dual snail horn setups.


The harness provides connections for the aftermarket loud horns, battery, and stock horn triggers. A grounding adapter is also provided in the wiring configuration for use when needed.


Application: Automotive
Ideal For: Dual Disc Horns | Dual Snail Horns
Features: Plug & Play | Universal | No Splices

DUAL AIR HORN HARNESS KIT AUTOMOTIVE - DAH1-A

DUAL AIR HORN HARNESS KIT AUTOMOTIVE

Product Code: DAH1-A


For Dual-Compressor Air Horn Setup


Install a dual-compressor air horn setup with a wiring harness designed specifically for automotive use.


The GRNDZRO Dual Air Horn Harness Kit Automotive provides dedicated connections for two air horn compressors, the vehicle battery, and stock horn triggers.


It provides a clean wiring solution for vehicles upgrading to a dual-compressor air horn system.


Application: Automotive
Ideal For: Dual-Compressor Air Horn Setups
Features: Plug & Play

NOT SURE WHICH HARNESS YOU NEED?

 

We’ll Help You Find the Right Product


Choosing the correct wiring harness depends on your vehicle and electrical setup.


Send us your:

Vehicle Make
Vehicle Model
Vehicle Year


Our team can help identify the appropriate GRNDZRO product for your application.


For safe and proper operation, we recommend installation by a qualified technician or experienced installer. GRNDZRO technical support is also available for product selection, installation guidance, and troubleshooting.

Find the Right Wiring Harness. Reach out to us

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