5 to 4 Wire Converter: plugs in and allows wiring and relay kits to power trailers requiring a four wire harness (run, left turn/brake, right turn/brake, ground); the bonus wire is still available to provide fused 12-Volt power to the trailer for compartment lights or keyless entry systems that are wired independently of the trailers essential lighting.
Includes 4-pin flat vehicle connector.
Fitment: 5 to 4 Wire Converter