Horn Upgrade Harness for Tata and Mahindra – Delphi Connector, Fits INFAC and Generic Horns

This is a horn upgrade harness built specifically for Tata and Mahindra vehicles that use a Delphi-type OEM horn connector from the factory. It is available in two variants depending on which horn you are fitting. Option A connects the car’s Delphi socket to Hyundai and Kia INFAC dual-tone horn sets — the same horn configuration used in Creta, Seltos, Venue, Sonet, Verna, and similar platforms. Option B connects the same Delphi socket to any standard aftermarket horn using thimble terminals — Minda, Bosch, Hella, Hella Chrome Trumpet, and equivalent generic dual-horn setups.

Both variants are wired as splitters — one Delphi input on the car side, two output leads on the horn side — allowing a complete dual-horn installation from the single factory horn connector. Both are built with automotive-grade copper core wiring, OE-grade heat-resistant insulation, and precision-moulded connectors throughout.

What Problem It Solves

Tata and Mahindra vehicles leave the factory with a single-tone horn and a Delphi-type connector at the horn circuit. Owners who want to upgrade to a louder, more refined dual-horn setup — whether that is a Hyundai Creta horn set, a Bosch dual horn, a Minda horn, or a Hella Chrome Trumpet — face an immediate compatibility problem. The Delphi connector on the car does not mate directly with INFAC horn terminals or standard thimble connectors. The typical workaround is cutting into the factory loom and splicing in new wiring — a permanent modification that compromises the integrity of the original wiring and cannot be cleanly reversed.

Owners searching for ways to install Creta horns in a Tata Nexon, fit Hyundai INFAC horns in a Mahindra Scorpio, upgrade to a Bosch horn in a Tata Punch, or connect Hella Chrome Trumpet horns to a Tata Harrier without cutting wires — this harness is the correct solution. It bridges the factory connector to the horn of choice without touching the original loom.

Installation Logic

Locate the existing horn connector in the engine bay — position varies by model but is generally accessible near the front bumper or behind the grille. Unplug the factory horn. Connect the Delphi coupler on this harness to the car’s factory horn socket — it seats in one orientation only. For Option A, connect the two INFAC terminals to the high-tone and low-tone outputs of your INFAC horn set. For Option B, connect the two thimble terminals to your aftermarket horns. No wire cutting, no crimping of new terminals, no relay, and no fuse work required. The harness is complete and ready to fit straight from the packet.

Behaviour Explanation

Both variants carry the horn trigger signal from the car’s existing horn circuit directly to the two connected horns. There are no electronics, relays, or modules in the circuit. Horn tone, volume, and trigger response are entirely determined by the horns fitted. The harness introduces no changes to how the horn circuit operates — it is a precision connector bridge that preserves the factory wiring state on the car side while providing the correct interface on the horn side.

Because both output leads are wired from the same input, both horns activate simultaneously when the horn button is pressed — producing the dual-tone effect that makes INFAC and quality aftermarket horn sets noticeably more effective than the factory single-tone unit.

Key Compatibility

This harness is compatible with Tata and Mahindra vehicles fitted with a Delphi-type OEM horn connector. Confirmed compatible models include:

Tata: Nexon, Nexon EV, Punch, Punch EV, Altroz, Tiago, Tigor, Harrier, Safari, Hexa

Mahindra: Scorpio N, Scorpio Classic, XUV700, XUV400, XUV300, Bolero Neo, Thar, BE 6, XEV 9e

If your model is not listed, verify your horn connector type before ordering. If it uses a Delphi-type connector, this harness will fit. Contact us on WhatsApp with a photo of your connector if you need confirmation.

Option A — INFAC Output: Compatible with Hyundai and Kia INFAC dual-tone horn sets including those from Creta, Seltos, Venue, Sonet, Verna, Alcazar, Tucson, Carens, and Carnival.

Option B — Universal Thimble Output: Compatible with Minda, Bosch, Hella, Hella Chrome Trumpet, and any other aftermarket horn using standard thimble terminals.

✖ Not compatible with vehicles using non-Delphi horn connectors ✖ Not suitable for single-horn configurations that require a different wiring arrangement ✖ Option A and Option B are not interchangeable — order the correct variant for your horn

Who Should Buy

Tata and Mahindra owners who want to upgrade to a dual-horn setup — whether fitting Hyundai or Kia INFAC horn sets or any quality aftermarket brand — without modifying the factory wiring. Suitable for DIY installation and professional workshop fitting. Ideal for anyone searching for a clean, reversible way to install Creta horns in a Nexon, Bosch horns in a Harrier, Hella horns in a Scorpio, or any dual-horn upgrade in a Tata or Mahindra vehicle.

Who Should Not Buy

Owners of Tata or Mahindra vehicles that do not use the Delphi-type horn connector — verify before ordering if unsure. Also not suitable for buyers looking to connect a single horn rather than a dual-horn setup. If your car already has an INFAC connector from the factory, this harness is not the right fit — refer to our dedicated INFAC horn harness listings instead.

Benefits

The factory Delphi connector on the car remains completely untouched. If you ever revert to the original horn, the harness unplugs and leaves no trace of modification. The dual-output design means both horns fire simultaneously from the single factory circuit — no relay, no additional wiring, no fuse work. Option A gives precise compatibility with the most popular aftermarket horn upgrade in the Indian market. Option B gives flexibility to connect virtually any standard aftermarket horn brand available in India.

FAQs

Q: Can I install Hyundai Creta horns in my Tata Nexon using this harness? A: Yes. Order Option A — INFAC Output. This harness connects your Nexon’s Delphi factory connector to INFAC horn terminals, allowing direct fitment of Creta, Seltos, Venue, or any other Hyundai/Kia INFAC horn set.

Q: Will this work with Bosch or Minda horns? A: Yes. Order Option B — Universal Thimble Output. The thimble terminals on the output side are standard fit for Bosch, Minda, Hella, Hella Chrome Trumpet, and most other aftermarket horns available in India.

Q: Do I need to cut any wires? A: No. The harness uses an OEM-type Delphi coupler on the car side. No wire cutting or splicing is required anywhere in the installation.

Q: How do I know which option to order? A: If you are fitting a Hyundai or Kia horn set — Creta, Seltos, Venue, or similar — order Option A. If you are fitting a Bosch, Minda, Hella, or any generic aftermarket horn with thimble connectors, order Option B.

Q: Does this fit Mahindra vehicles as well? A: Yes. Confirmed compatible with Mahindra models using the Delphi-type horn connector including Scorpio N, XUV700, XUV300, Thar, and others listed in the compatibility section.

Q: Is a relay required? A: No. The harness is complete as supplied. No relay, no inline fuse, and no additional wiring is needed.