{"product_id":"oyviny-4-pin-trailer-wiring-harness-for-2004-2007-toyota-highlander-direct-fit-with-powered-converter","title":"Oyviny 4‑Pin Trailer Wiring Harness for 2004–2007 Toyota Highlander — Direct‑Fit with Powered Converter","description":"\u003cp\u003e\u003cstrong\u003eThe Oyviny 56107 is a custom 4-pin trailer wiring harness engineered to add a factory-style 4-way connector to 2004–2007 Toyota Highlanders equipped with the factory tow package.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you own a 2004, 2005, 2006 or 2007 Toyota Highlander with the factory tow package and want a reliable way to power trailer lights, this harness provides a direct-fit, plug-and-play solution. Built with 16 AWG pure copper conductors and a powered converter module, the kit maps your vehicle’s signals to standard 4-pin trailer wiring without splicing into factory circuits. Weather-resistant caps and a fused battery feed protect the system for long-term use while preserving the Highlander’s original wiring integrity.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this harness connect to my Highlander?\u003c\/h3\u003e\n\u003cp\u003eThe Oyviny 56107 plugs into your Highlander’s existing tow-package connectors—no cutting or splicing required. It uses custom-fit plugs designed to match factory sockets and a powered module that draws directly from the battery to power trailer lights reliably.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit connectors for Highlander 2004–2007 factory tow package\u003c\/li\u003e\n  \u003cli\u003ePowered converter module with battery feed to prevent vehicle circuit overload\u003c\/li\u003e\n  \u003cli\u003eSimple unplug-and-insert installation, typically no tools beyond basic access\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat lighting functions does the 4-pin connector support?\u003c\/h3\u003e\n\u003cp\u003eThis 4-pin standard flat connector transmits taillights, turn signals and brake lights from the vehicle to the trailer. The included tail light converter conditions vehicle signals so the trailer receives proper, compatible outputs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTail lights (running lights) transmission\u003c\/li\u003e\n  \u003cli\u003eLeft and right turn signal outputs\u003c\/li\u003e\n  \u003cli\u003eBrake light feed shared with stop\/turn circuits via the converter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the wiring durable and protected from the elements?\u003c\/h3\u003e\n\u003cp\u003eThe harness uses reliable materials to withstand road conditions and seasonal exposure. Connectors are molded from durable ABS, wiring is 16 AWG bonded pure copper for solid conductivity, and rubber dust caps shield vulnerable points from moisture and dirt.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eABS plastic connector housings resist impact and UV exposure\u003c\/li\u003e\n  \u003cli\u003e16 AWG pure copper wires for consistent electrical performance\u003c\/li\u003e\n  \u003cli\u003eRubber dust caps on connector and fuse to reduce corrosion and short risk\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long does installation take and do I need special tools?\u003c\/h3\u003e\n\u003cp\u003eInstallation is designed to be quick for anyone comfortable accessing the rear tow harness on a Highlander. Because this is a plug-and-play kit that uses factory-style mating connectors, no splicing or advanced tools are required—most installations can be completed in under an hour.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNo wire cutting or splicing; fits into factory sockets\u003c\/li\u003e\n  \u003cli\u003eIncludes fused battery connection for safe power supply\u003c\/li\u003e\n  \u003cli\u003eTypical install time: 30–60 minutes depending on access and experience\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Oyviny 56107 is aimed at owners of 2004–2007 Toyota Highlanders who have the factory tow package and need a dependable, OEM-friendly way to add a standard 4-way trailer connector. It’s ideal for commuters who tow small trailers, campers or cargo carriers and want a clean installation that protects the vehicle’s original wiring while delivering steady trailer lighting performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this fit my 2006 Toyota Highlander without modification?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—if your 2006 Highlander has the factory tow package, the Oyviny 56107 is a direct-fit, no-splice installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the harness overload my vehicle’s wiring?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No—the harness uses a powered converter with a fused battery connection to prevent overloading the vehicle circuits.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Oyviny","offers":[{"title":"Default Title","offer_id":55171224797527,"sku":"B09KB9VGMQ","price":50.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/oyviny-56107-front-connector.jpg?v=1790440833","url":"https:\/\/britishgarage.co.uk\/products\/oyviny-4-pin-trailer-wiring-harness-for-2004-2007-toyota-highlander-direct-fit-with-powered-converter","provider":"British Garage","version":"1.0","type":"link"}