Specifications & Compatibility

Single to Dual Horn Harness for Volkswagen & Skoda – Plug and Play

Convert Your Single Horn Setup to Dual Horns — No Wire Cutting, No Modifications

Upgrade your Volkswagen or Skoda to a proper dual horn setup with this plug-and-play conversion harness. Designed specifically for VAG vehicles that come from the factory with a single horn wiring provision, this harness splits the original horn signal into two outputs — letting you install dual trumpet horns cleanly, safely, and in a way that looks factory-fitted.

No wire cutting. No soldering. No splicing. The original factory connector unplugs from the single horn, connects into the male end of this harness, and the two female ends plug directly into your dual horns. Installation takes under ten minutes and requires no special tools.

This harness uses the standard VAG horn connector — part numbers 4D0 971 992 (female) and 1J0 973 702 (male) — the same connectors used in OEM horn wiring across the Volkswagen and Skoda range. The fit is tight, factory-style, and does not rattle or pull loose under vibration.

What Makes This Harness Different from a Basic Y-Splitter

A generic Y-splitter uses thin wire and friction-fit terminals that can work loose over time, especially in the engine bay where heat and vibration are constant. This harness is built differently.

The wiring is 1.5 sq.mm thick copper core — the same cross-section used in OEM horn circuits — ensuring minimal resistance and full current delivery to both horns simultaneously. The connectors are injection-moulded to OEM dimensions, so they seat firmly with an audible click and stay locked in place. The entire harness is wrapped in automotive-grade insulation tape, the same type used on factory loom sections, protecting it against heat, moisture, and abrasion inside the engine compartment.

Every harness is polarity and fit-tested before dispatch.

Compatible Vehicles

This harness is compatible with all Volkswagen and Skoda models that use a single horn factory wiring provision, including:

Volkswagen: Polo, Vento, Ameo, Taigun, Virtus

Skoda: Kylaq, Kushaq, Slavia, Rapid, Fabia, Octavia

Also compatible with Audi and SEAT vehicles using the same VAG standard 4D0 971 992 connector.

If your car came with a single horn as standard and you want to upgrade to a dual horn setup — this harness is the correct solution regardless of model year.

What Is Included

One complete pre-assembled conversion harness consisting of one male VAG horn connector and two female VAG horn connectors, wired together with 1.5 sq.mm copper core wire at a total harness length suitable for direct installation. No additional wiring, crimping, or extensions are required for standard single-to-dual horn conversions on the above models.

Installation Overview

Dual horn installation using this harness is a straightforward process:

Locate the single horn behind the front bumper or in the engine bay. Unplug the factory connector from the original horn. Plug the factory connector into the male end of this harness. Connect the two female ends to your two horns. Secure the harness with a cable tie to keep it away from heat sources. Test both horns.

No relay is required for standard dual horn setups on VW and Skoda vehicles — the factory horn circuit is rated to handle dual horn load. If you are using high-current aftermarket horns, a relay is recommended and can be added independently.

Frequently Asked Questions

Does this harness require any wire cutting or modification to the factory loom? No. It is entirely plug-and-play. The factory horn connector unplugs from the original horn and connects directly to this harness. Nothing in the original wiring is cut, spliced, or altered.

Which connector standard does this harness use? It uses the VAG standard 4D0 971 992 female connectors and 1J0 973 702 male connector — the same spec used across Volkswagen, Skoda, Audi, and SEAT horn circuits.

Is a relay needed? A relay is not required for OEM-spec dual horns on VW and Skoda models. The factory horn circuit handles dual horn load without issue. For high-wattage aftermarket horns, a relay is advisable.

My Skoda Kylaq / Kushaq came with only one horn. Will this work? Yes. Several VW and Skoda models — including the Kylaq, base-spec Kushaq, Rapid, and Polo — come with a single horn from the factory even though the body has two horn mounting positions. This harness gives you the second output you need to install the second horn without touching the factory wiring.

Can I use this with aftermarket horns? Yes, as long as the aftermarket horns use the standard VAG 2-pin connector format (4D0 971 992 compatible). For non-VAG connector horns, you will need an adapter terminal.

Do the dual horns come included? The dual horns are sold separately. We carry OEM-compatible dual tone trumpet horns — see the Horn Harness section on tecupdater.com or contact us on WhatsApp at +91 96252-18968 to confirm the correct horn set for your vehicle.

Why Buy from TecUpdater

TecUpdater specialises in plug-and-play automotive upgrades for Volkswagen and Skoda owners in India. Every product in the range is tested for fitment on actual vehicles before listing. This harness has been installed by TecUpdater on Kylaq, Kushaq, Rapid, Polo, and Octavia models, and is the same harness used by several authorised service centres for dual horn conversions.

Orders are shipped daily. For installation queries or to place an order, visit tecupdater.com or WhatsApp us at +91 96252-18968.