Kuryakyn Trailer 5 Wire Wiring Relay Harness Adapter Hookup Honda Gold Wing 18+ New Hire Training Exercise 3: Accessing USA Staffing Onboard as the New. BRAND NEW PART# 2583 Plug & Play Trailer Wiring for '18 '20 Gold Wing with 5 Wire Trailer Gold Wing: '18 '20 Gold Wing Eliminate overloading stock lighting or accessory circuits. The Kuryakyn Trailer Wiring & Relay Harness utilizes inputs from the motorcycle to direct power away from the battery to the appropriate trailer circuit. 5 Wire Plus 1: Provides standard 5 wire output (run, brake, left turn, right turn, ground), does not include receptacle kits due to variance in trailer manufacturer requirements 4 Wire Plus 1: Provides standard4 wire output (run, left turn brake, right turn brake, ground), includes flat 4 connector Both harnesses contain a "bonus wire" to provide fused 12v power to the trailer for compartment lights or security keyless entry systems