CURT 2-to-3-Wire Trailer Tail Light Converter for Dinghy Towing — 56196, Splice-In with Color-Coded Leads

CURT 56196 is a splice-in electrical converter that changes a vehicle's 2-wire taillight system into a standard 3-wire trailer wiring setup for dinghy towing.

If your vehicle lacks a factory trailer connector, the CURT 56196 provides a simple, durable way to power trailer tail lights while your car is being dinghy towed behind an RV. Instead of plugging into factory sockets, this unit splices directly into the vehicle's taillight wiring to supply the required signal and tail power a trailer needs. It’s built for long-term use, with color-coded leads for straightforward installation and surface-mount circuitry that reduces heat and ensures consistent lighting performance.

How does the 2-to-3-wire conversion work for dinghy towing?

The CURT 56196 taps into your vehicle’s existing two-wire system and creates a third dedicated wire for trailer signal function. That extra conductor separates tail and turn/stop signals so the trailer receives correct lighting inputs. Installation requires splicing into the vehicle harness at the taillight, so it mounts discreetly and maintains an OEM-style connection once complete.

• Converts vehicle 2-wire taillight circuits into standard 3-wire trailer wiring
• Creates separate tails and turn/stop signal outputs for trailers
• Mounts inline with vehicle wiring for a tidy, long-lasting connection

What makes installation straightforward for DIYers?

CURT includes blunt-cut, color-coded wires to speed identification and reduce guesswork while splicing. You don’t need additional heavy-duty flashers or a direct battery feed — the unit is ready to install into the taillight harness. Basic splicing tools and common automotive wiring techniques are sufficient for a correct, reliable connection.

• Color-coded leads match signal and taillight circuits for easy wiring
• Blunt-cut wires arrive ready to splice—no pre-assembly required
• Does not require external flashers or battery taps for operation

How durable and reliable is the CURT 56196 in real-world use?

The converter uses surface-mount technology to keep components compact and reduce heat generation, which helps maintain consistent light intensity. Its design favors longevity when spliced correctly into vehicle wiring, providing a dependable connection for repeated dinghy towing. Proper sealing and secure splices will protect performance over time.

• Surface-mount circuitry for lower heat and steady light output
• Engineered for continuous use with trailers while dinghy towing
• Requires proper splicing and insulation for long-term reliability

Can this converter interface with a 4-way flat socket?

Yes — the 2-to-3-wire converter can be spliced into a 4-way flat socket to provide a convenient external connection for trailers. This makes it flexible for drivers who want a removable trailer plug rather than a direct splice to the trailer wiring. It’s a common option for vehicles that will be towed occasionally or for owners who prefer a standard connector.

• Compatible with splicing into a 4-way flat trailer socket
• Allows an external, removable connection point for trailers
• Useful for vehicles used intermittently for dinghy towing

Who is this for? The CURT 56196 is intended for drivers who need a dependable trailer lighting solution while their vehicle is dinghy towed by an RV or large tow vehicle. It suits owners comfortable with basic electrical splicing who want a compact, long-lasting converter to create standard 3-wire trailer outputs from a vehicle that only has a 2-wire taillight system. Choose this unit if you want a ready-to-install, color-coded splice-in option that integrates with a 4-way flat socket or supplies a fixed trailer lighting feed.