Citroen’s India lineup — C3, C3 Aircross, and the electric eC3 — is built on a shared platform with a single factory horn as standard. Because Citroen is a newer entrant here, dedicated horn upgrade parts for these cars are harder to find than for older, higher-volume brands. This splitter is built specifically for that connector, so a dual-horn upgrade doesn’t turn into a rewiring job.
Things Owners Usually Ask
| Does the eC3, being electric, handle horns differently? | No. Horns on the eC3 run off the standard 12V accessory battery, same as on the petrol C3 — the horn circuit itself isn’t tied to the EV drivetrain. |
| Will two horns draw too much from the accessory battery? | No. Horn current draw is brief and only happens while the button is pressed, so it doesn’t behave like a continuous-draw accessory. |
| Is the factory horn relay still used? | Yes. The splitter connects on the output side of the existing relay — the relay and fuse continue to control the circuit as before. |
| Does this require any cutting on the C3 Aircross harness? | No. It’s a plug-in connector between the factory socket and your two horns. |
| Can I reverse the installation later? | Yes — unplug the splitter and refit a single horn directly, and the car is back to its original setup. |
The Harness
Citroen Dual Horn Splitter Harness – Plug and Play Coupler for Dual Horn Installation
Splits the factory single-horn connector on the C3, C3 Aircross, and eC3 into two outputs for a dual horn set.
Bottom Line
Given how few Citroen-specific accessories exist in the Indian aftermarket right now, this splitter fills a fairly narrow gap — but for owners who do want a dual-tone setup, it removes the connector issue entirely.