Combined wiring system - brake and turn signals are sent along the same wire - but it is recommended to use a powered module to safeguard the vehicle's wiring and get extra power to support the trailer lights.
Custom Fit Vehicle Wiring Specs:
Features:
Install a 4-way flat on your vehicle with this splice-in harness. Powered converter connects directly to battery to reduce strain on wiring. Potted, SMT construction boosts water and vibration resistance. Works with 2-wire, 3-wire, and PWM systems.
More Information >Custom Fit Vehicle Wiring Specs:
Features:
These units completely isolate the tow vehicle from trailer malfunctions. Power is taken directly from the battery for isolation and brighter trailer tail lights.
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