Combined wiring system - brake and turn signals are sent along the same wire - but a powered module is required to safeguard the vehicle's wiring and support the trailer lights.
Custom Fit Vehicle Wiring Specs:
Features:
Install a 4-way trailer connector on your vehicle without cutting or splicing into your wiring. Zero-contact interface sensors identify the current flowing through each wire by simply clamping onto it. Circuit-protected module is made using SMT.
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