---
product_id: 14828219
title: "iJDMTOY 12V Horn Wiring Harness Relay Kit Compatible with Car Truck Grille Mount Blast Tone Horns (Actual Horn Not Included)"
brand: "ijdmtoy"
price: "126 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/14828219-ijdmtoy-12v-horn-wiring-harness-relay-kit-compatible-with-car
store_origin: PL
region: Poland
---

# 30-40 AMP max current Direct battery power for heavy loads 4-pin SPST relay with socket iJDMTOY 12V Horn Wiring Harness Relay Kit Compatible with Car Truck Grille Mount Blast Tone Horns (Actual Horn Not Included)

**Brand:** ijdmtoy
**Price:** 126 zł
**Availability:** ✅ In Stock

## Summary

> 🔊 Amplify your ride’s voice with power and precision!

## Quick Answers

- **What is this?** iJDMTOY 12V Horn Wiring Harness Relay Kit Compatible with Car Truck Grille Mount Blast Tone Horns (Actual Horn Not Included) by ijdmtoy
- **How much does it cost?** 126 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/14828219-ijdmtoy-12v-horn-wiring-harness-relay-kit-compatible-with-car)

## Best For

- ijdmtoy enthusiasts

## Why This Product

- Trusted ijdmtoy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Precision:** Pre-wired 4-pin relay with socket ensures hassle-free installation and reliable connections.
- • **Powerhouse Performance:** Handles up to 40 amps for high-demand horn setups without breaking a sweat.
- • **Battery-Friendly Design:** Draws power directly from the battery to protect your vehicle’s wiring from overload.
- • **Dual Output Versatility:** Supports two-contact horns simultaneously, perfect for that signature blast tone.
- • **Universal Compatibility:** Fits a wide range of vehicles including Subaru WRX STI models from 2000-2022.

## Overview

The iJDMTOY 12V Horn Wiring Harness Relay Kit is a robust, pre-wired 4-pin SPST relay system designed to safely power high-wattage horns by drawing current directly from the battery. Rated for 30-40 amps and compatible with most 2-contact horns, it ensures reliable, overload-free operation and fits a broad range of vehicles including Subaru WRX STI models from 2000 to 2022.

## Description

iJDMTOY 12V Horn Wiring Harness Relay Kit Compatible with Car Truck Grille Mount Blast Tone Horns (Actual Horn Not Included)

## Features

- One relay wiring harness set includes a 4-pin SPST relay module box, in-line safety fuse box, input +/- terminals, two terminals for triggering and dual metal contact outputs for reliable and efficient electrical connections
- The pre-wired SPST 4-pin electrical relay unit, complete with socket and rated at 12V DC with a maximum of 30-40AMP, is ideal for most heavy duty electronic devices, light applications between 9-16V DC, with a wattage not exceeding 160W
- Two-wire universal fit inptut trigger, with dual outputs, good for most 2-contact horns such as Hella 003399801 Supertone and many other aftermarket high/low tone horns
- Perfect for power management, this relay harness is ideal for applications like high wattage horns drawing power directly from the battery to prevent excessive load on the vehicle’s existing wiring system and ensuring safe, easy on/off operation
- Installation tips: connect output contacts to up to two pieces of supertone horns, attach red/black O-ring/C-ring to battery +/- or ACC/accessory 12V+/ground, route the signal triggering wires to origial horn sockets

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Connector Type | Wire Terminals Or Spade Connectors |
| Contact Type | Normally Open |
| Current Rating | 30 Amps |
| Mounting Type | Socket Mount |
| Brand | iJDMTOY |
| Operation Mode | Manual |
| Coil Voltage | 12 Volts (DC) |
| Minimum Switching Voltage | 12 Volts (DC) |
| Manufacturer | iJDMTOY Auto Accessories |
| Item Weight | 9.5 ounces |
| Product Dimensions | 2.17 x 7.87 x 6.02 inches |
| Item model number | For Repair, Conversion, Custom Retrofit |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | AA1147 |
| OEM Part Number | Compatible with Subaru Impreza WRX STI and more 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 |
| Voltage | 12 Volts |

## Product Details

- **Connector Type:** Wire Terminals Or Spade Connectors
- **Contact Type:** Normally Open
- **Current Rating:** 30 Amps
- **Mounting Type:** Socket Mount
- **Brand:** iJDMTOY

## Images

![iJDMTOY 12V Horn Wiring Harness Relay Kit Compatible with Car Truck Grille Mount Blast Tone Horns (Actual Horn Not Included) - Image 1](https://m.media-amazon.com/images/I/81t6zpVTxwL.jpg)

## Questions & Answers

**Q: Would this work for an installation on a 2006 Honda Recon 250?**
A: Yes

**Q: Does this relay work with the hella horns or is this the same relay that comes with the hella horn?**
A: This relay does NOT work with Hella horns, I tried to use it to install them on my Subaru and they did not function at all. go with this. https://www.rallysportdirect.com/fits/2010-subaru-impreza-wrx-sti-special-edition-hatchback-2-5/horns/grm-040005-grimmspeed-wiring-harness-for-hella-horns?gclid=CN-Y9t6tss4CFcZahgodee8AYQ

**Q: : Does the relay delay the new horns and just play the OEM horn if you just hit the horn button?**
A: Are you leaving the OEM in as well?
I replaced the OEM one with the dual blast ones and they worked fine with no delay

**Q: at the time i ordered this i did not know it did not come with a relay harness... does anyone know a harness i can get that is compatible? /w 2 relay?**
A: iJDMTOY (1 12V Horn Wiring Harness Relay Kit Compatible with Car Truck Grille Mount Blast Tone Horns - COMES WITH A RELAY. This one fits all Subaru models.
But harnesses without relay should work as well. I bought it with a relay for better performance and to protect the Hella horns.
PS. Water and humidity will rust the relay connectors. I strongly recommend to apply a small amount of dielectric grease on all connector pins before installing.

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-26*