{"product_id":"eonon-5-5m-extension-harness-for-bmw-e46-e39-radios","title":"EONON 5.5m Extension Harness for BMW E46 E39 Radios","description":"\u003cstrong\u003eA 5.5-meter EONON extension harness that links select BMW E46 and E39 factory wiring to compatible Eonon car stereo models (17-pin and 40-pin variants included).\u003c\/strong\u003e\n\n\u003cp\u003eThis extension cable is engineered to extend the factory radio power and data connections in BMW 3 Series and 5 Series models so you can install an Eonon head unit without cutting or splicing the original wiring. Designed specifically for use with Eonon model families listed below, the harness comes in two connector types (17-pin and 40-pin) to match late-1990s and early-2000s BMW trunk radio power sockets. Its 5.5 m length gives installers flexibility when routing cables through the cabin or trunk.\u003c\/p\u003e\n\n\u003ch3\u003eWhich BMW models and years will this harness work with?\u003c\/h3\u003e\n\u003cp\u003eThe harness supports specific E46 and E39 model year ranges depending on connector type. The 17-pin option fits earlier BMWs, while the 40-pin option fits later model years. Before ordering, verify your vehicle’s trunk radio power socket matches one of the connector types listed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e17-pin: BMW E46 (1998–2001) and BMW E39 (1996–2001)\u003c\/li\u003e\n  \u003cli\u003e40-pin: BMW E46 (2002–2005) and BMW E39 (2002–2003)\u003c\/li\u003e\n  \u003cli\u003eConfirm socket location in trunk prior to purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the 5.5 m length help the installation process?\u003c\/h3\u003e\n\u003cp\u003eThe extra length simplifies routing from the trunk or rear harness locations to the dashboard without tension. Installers can anchor connections away from heat and moving parts, and have room to dress the cable tidy for a professional finish.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e5.5 meters provides ample slack for routing behind panels\u003c\/li\u003e\n  \u003cli\u003eEasier positioning of the head unit during fitting and testing\u003c\/li\u003e\n  \u003cli\u003eAllows cleaner cable management and strain relief placement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this harness with non-Eonon head units or other BMW models?\u003c\/h3\u003e\n\u003cp\u003eThis extension is purpose-built for specific Eonon stereo models and the BMW models above; it will not reliably interface with unrelated head units or unsupported vehicle wiring. Using it with incompatible equipment can result in improper connections or loss of features.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOnly compatible with Eonon models listed in product details\u003c\/li\u003e\n  \u003cli\u003eNot intended for factory or aftermarket stereos from other brands\u003c\/li\u003e\n  \u003cli\u003eCheck Eonon model compatibility before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before buying and installing this harness?\u003c\/h3\u003e\n\u003cp\u003eDouble-check the connector type and your vehicle’s model year, and confirm the Eonon head unit model you plan to use. If unsure, review the trunk radio power socket or consult installation photos to match the 17-pin or 40-pin layout.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify your BMW’s year matches the connector compatibility lists\u003c\/li\u003e\n  \u003cli\u003eConfirm the head unit is one of the supported Eonon models\u003c\/li\u003e\n  \u003cli\u003eInspect trunk tuner socket shape and pin count prior to purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis harness is intended for technicians, DIY installers, and BMW owners upgrading to a compatible Eonon multimedia head unit who want a non-destructive, reversible connection method. It’s well suited for professional installers needing extra cable length for clean routing, and for enthusiasts who prefer to keep factory wiring intact while fitting an aftermarket Eonon stereo. If your vehicle or head unit is not listed, choose a different adapter designed for that make and model.\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 harness work with non-Eonon stereos?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This extension is designed specifically for Eonon head units listed in the product details and may not match other brands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I know whether I need the 17-pin or 40-pin version?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check your BMW model year and trunk radio socket: 1996–2001 E39 and 1998–2001 E46 use 17-pin; 2002–2005 E46 and 2002–2003 E39 use 40-pin.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"EONON","offers":[{"title":"Default Title","offer_id":48413472719005,"sku":"B09MRJG534","price":70.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/eonon-harness-front-view.jpg?v=1781267841","url":"https:\/\/nexoltic.com\/products\/eonon-5-5m-extension-harness-for-bmw-e46-e39-radios","provider":"Nexoltic","version":"1.0","type":"link"}