nissan frontier trailer harness | eBay www›Search›nissan frontier trailer harnessFind great deals on eBay for nissan frontier trailer harness. Shop with confidence. Skip to main content. eBay Logo: For 1998-2006 Nissan Frontier Trailer Wiring Harness Hopkins 14428WT 2005 1999 See more like this. Flat 4 Pin Adapter Y-Splitter Tow Trailer Harness for LED Tailgate Light Bar. Brand New · Hitch Plug. Nissan Frontier Hitch Wiring - Best T Connectors & Trailer Nissan Frontier trailer wiring. Reviewed By James G (SOUTH WEYMOUTH, MA) Reviewed for a 2017 Nissan Frontier —5/14/2018 4:09 AM Needed an adapter to connect into wiring harness for trailer.