Many Citroen vehicles sold in India come with a single horn configuration from factory. While functionally adequate, owners often prefer upgrading to a dual horn setup for better tone balance and improved road presence. The issue is not the horn itself — it is the wiring.

Most dual horn upgrades in the market involve cutting factory wires, adding tap connectors, or manually splicing additional leads. These practices compromise insulation integrity, create potential voltage drop, and introduce long-term reliability risks. For vehicles still under warranty, cut wiring can also become a concern.

The TecUpdater Citroen dual horn splitter is engineered to solve this correctly.

It connects directly to the vehicle’s original horn coupler and splits the output into two properly terminated horn connectors. The harness uses 1.5 sqmm automotive-grade copper wiring — suitable for handling standard dual horn electrical loads — and is insulated for Indian climate conditions.

No cutting.
No splicing.
No exposed joints.

It preserves factory wiring while enabling a clean dual horn installation.

What It Is

A plug-and-play dual horn splitter harness designed for Citroen vehicles using the standard factory horn connector.

One end connects to the original horn socket in the car.
The other end provides two horn output connectors wired in parallel to operate two horns simultaneously.

Brand: TecUpdater.

What Problem It Solves

Factory single-horn setups create three common issues:

1. Limited acoustic presence.

2. Owners resorting to unsafe wiring modifications during upgrades.

3. Voltage drop caused by thin extension wires or improper splicing.

This harness addresses those issues by:

• Preserving OEM wiring integrity

• Providing correct wire gauge for standard dual horns

• Eliminating the need for cutting factory insulation

• Maintaining clean electrical distribution

It allows installers and vehicle owners to upgrade responsibly without compromising factory architecture.

Installation Logic

Installation is straightforward:

1. Locate the factory horn connector.

2. Disconnect it from the original horn.

3. Connect the vehicle’s factory socket into the input side of this splitter.

4. Connect the two output connectors to the two horns.

5. Secure both horns and route wiring safely.

No wire cutting required.
No relay required for standard OEM-type dual horns.
No coding required.
No modification to BCM or fuse box required.

If installing high-draw aftermarket trumpet horns or air compressor-based systems, a dedicated relay harness is recommended instead of a direct splitter.

Behaviour Explanation

This harness distributes the existing horn signal to two horns in parallel.

It does not amplify voltage.
It does not increase current supply beyond factory limits.

The 1.5 sqmm copper wiring ensures proper current handling for standard dual horn configurations typically used in passenger vehicles.

The factory fuse rating remains unchanged. Total horn load must remain within safe operating limits.

Key Compatibility

Compatible with Citroen vehicles sold in the Indian market that use the standard factory horn coupler, including:

• Citroen C3

• Citroen eC3

• Citroen C3 Aircross

• Citroen Basalt

• Citroen C5 Aircross

All trims and variants are supported where the factory horn connector matches the standard Citroen coupler design.

Not compatible with:

• Vehicles already equipped with factory dual horn harness

• Cars where the horn wiring has been previously modified

• High-power air horn systems requiring relay-based circuits

Visual connector verification is recommended before ordering.

Who Should Buy

• Citroen owners upgrading from single to dual horn

• Installers looking for clean OEM-style fitment

• Workshops avoiding wire cutting

• Owners maintaining warranty-safe electrical integrity

Who Should Not Buy

• Users installing compressor-based air horns

• Vehicles requiring heavy-load relay systems

• Cars with non-standard or modified horn connectors

Benefits

• True plug-and-play installation

• 1.5 sqmm automotive-grade copper wiring

• Factory-style locking connectors

• Clean parallel dual horn distribution

• No wire cutting

• Maintains OEM wiring structure

• Suitable for Indian operating conditions

FAQs

Q1: Does this increase horn loudness?
No. It enables two horns to operate together. Loudness depends on the horns installed.

Q2: Is a relay required?
For standard OEM-type dual horns, no relay is required. For high-power aftermarket horns, a relay harness is recommended.

Q3: Will this affect my vehicle warranty?
No factory wires are cut. Warranty decisions depend on manufacturer policy, but this harness preserves original wiring.

Q4: Can this be used on all Citroen trims?
Yes, provided the vehicle uses the standard factory horn connector found in Indian-market Citroen models.

Relevant Search Phrases We Cover

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