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

4.2/5
Product ID: 14828219
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Details

  • Connector Type
    Wire Terminals
  • Contact Type
    Normally Open
  • Current Rating
    30 Amps
  • Mounting Type
    Socket Mount
  • Brand
    iJDMTOY
30-40 AMP max current
🔋Direct battery power for heavy loads
🔌4-pin SPST relay with socket
Frequently Bought Together

Description

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

  • 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.

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.

Specifications

Connector TypeWire Terminals Or Spade Connectors
Contact TypeNormally Open
Current Rating30 Amps
Mounting TypeSocket Mount
BrandiJDMTOY
Operation ModeManual
Coil Voltage12 Volts (DC)
Minimum Switching Voltage12 Volts (DC)
ManufactureriJDMTOY Auto Accessories
Item Weight9.5 ounces
Product Dimensions2.17 x 7.87 x 6.02 inches
Item model numberFor Repair, Conversion, Custom Retrofit
Is Discontinued By ManufacturerNo
Manufacturer Part NumberAA1147
OEM Part NumberCompatible 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
Voltage12 Volts

Have a Question? See What Others Asked

Would this work for an installation on a 2006 Honda Recon 250?
Does this relay work with the hella horns or is this the same relay that comes with the hella horn?
: Does the relay delay the new horns and just play the OEM horn if you just hit the horn button?
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?

Reviews

4.2

All from verified purchases

T**K

Really great for the price.

I was thinking on making my own wire harness for my hella horns on my subaru. Then I seen this harness for $12.00 and I was like ill take a chance on it worse case I wasted $12.00. When I got it I was very surprised on how much wire is in the harness. It worked great for wiring my hella horns in. I couldn't of made this harness for no $12.00 well worth the money.

E**N

The main relay broke after 12 hours

The harness went together super easy took maybe 5 min to set it up but my issue came the following day when I was cut off in traffic and the horns would not work because the relay got wet from the rain the night before now I have to go out and buy a new relay for like 10 dollars which isn't much but overall it's made well as far as the wires go but you might as well just pre plan if you buy this buy a good relay from a parts store that comes with a minimum 30 day warranty

N**Y

Saved quite a bit of timee

I have to split and re-wire a wire, but that’s not the products fault, and it was fairly simple to install, just had to watch a video and follow the picture given on the product, this made it so much more easy than wiring yourself, and probably increased power to the horns.

J**W

Learn to solder, don’t be a putz.

Overall I’m satisfied I got a good product for the money. Sure some of the cables are a tad too long or too short, but I made it work. Really, if you have the patients and know how to solder and use heat shrink tubing, you can make it fit like a glove. I did soldered a proper harness end connector for the end that connects to the existing horn circuit, and zip tied the wires that had too much slack. Piece of cake, works great! Anyone here who bitches about the product not being perfect (short of being broken) doesn’t have any business working under the hood, because they either don’t know how basic vehicle electronics work, or is too lazy to make a universal harness work for them. Don’t be lazy, customize the harness for your car.

N**A

Good Harness, but not for every appication

I have a 2021 and 2025 Subaru Forester and you will have to make cable adjustments. extend and move the cables since it;s not a perfect fit and the battery is far back. I recommend understanding the cables and relay; to understand the cable configuration needed before starting to work. Overall for the amount of cable, it's a good deal since it serves as a base to start the job, but certainly not a plug-and-play application.I wish the harned brought a piece of paper with some basic cable diagrams and instructions to avoid all the confusion, since in the case of a Subaru there is an extra cable left once you install everything else. (there is an extra ground for the relay itself that needs to be bolted somewhere)

C**S

Nice relay harness.

Nicely put together relay and wiring kit for a two-horn setup being added to your vehicle. My installation was to replace a single horn setup for a 2015 Honda Civic. The only way you can figure out what wires go where is to look at the photo on the Amazon website ad which shows the two horn connectors, the battery + and -, and the feed back to the original car + and - connections from the factory (hint, it's the bullet shaped ones). I had to cut off the bullet-shaped connectors for the original Honda connections and solder them together, not a big issue. One issue is that the feeds that go to the battery (+ and - ) should be foot or so longer. I had to splice in an extension, and the Civic is not a wide car. Each installation will be different, so I expected to have to do some home wiring. The fee a new pair of Hella 007424801 Twin Trumpet High/Low Tone horns. The original meep-meep POS Honda single horn only pulled 3.5 Amps. The new Hella units pull about 6 Amps each, thus the need for the dedicated power feed and relay. Works great.

B**D

Universal my patooty

It was supposed to fit my jeep wiring wise. The directions are for the birds not supposed to have to cut wires but none of theres work on any of my jeeps even when it said this will fit your vehicle. No where xlose and the instructions are terrible and no mention of extra wires tbat need to be left only cause i dont see wby theres 3 sets of 2 wires one out neg. side? and one out pos side and one out middle also a neg connection and pos. connection . Its supposed to hook to existinv horn which is alreaxy got power. Needless to say it didnt work and cant recund im sure cause i modified its newness by crimping wires. DO NOT WASTE YOUR MONEY

G**E

2011 Mazda MX-5

I replaced the Nautilus horn with this Hella Supertones and WOW! so much better. The wiring harness makes the install so much easier. Here are some tips to for a Mazda MX-5 Miata install with this combo:1. There are mounting holes already in the car (Thank you Mazda!) you just need bolts. So pickup a pair of M6 - 1.00 x 16, and two M6 lock washers. You can also use M6 1.00 x 20 bolts. BTW, I also used some thread locker to keep it in there.2. Take off the front bumper. Yes, it makes it so much easier.3. The stock horn connector is a spade type and the kit is cylindrical, so you'll need to figure that out by changing one of them. I just change mine to new spade type connectors.4. Run all the cable as per the directions in the kit and zip tie it to keep it nice and tidy.I hope this helps, LOVE my horn now.Dumb drivers and pedestrians on their phones too busy to watch where they are going to do not like how loud my horn is...LOL.Oh, some have use the stock horn connection, but I figured, since I'm already in there, why not do it right the FIRST time and not have to go back in and fix it.Here's the link to the Horn I installed:HELLA 003399801 Supertone 12V High Tone/Low Tone Twin Horn Kit

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