Trailer Wiring - Walmart wwwart››Automotive ElectricalYou are eligible for a full refund if no ShippingPass-eligible orders have been placed cannot receive a refund if you have placed a ShippingPass-eligible order this case, the Customer Care team will remove your account from auto-renewal to ensure you are not charged for an additional year and you can continue to use the subscription until the end of your subscription term. Amazon: trailer light harness kit SUZCO 25 Foot 4 Wire 4-Flat Trailer Light Wiring Harness Extension Kit, 4-Way Plug 4 Pin Male & Female Extension Connector & Wishbone-Style with 18 Gauge White Ground Wire with SAE J1128. by SUZCO. 4.7 out of 5 stars 12. $12 $ 12. 99. Get it as soon as Wed, Mar 6.