{"product_id":"metra-70-8117-factory-amplifier-bypass-harness-for-toyota-vehicles","title":"Metra 70-8117 Factory Amplifier Bypass Harness - Fast Radio Install","description":"\u003cp\u003eIn this review of the Metra 70-8117 Factory Amplifier Bypass Harness, the bottom line is simple: this harness is for installers and DIYers who want a faster, non-destructive way to install an aftermarket radio in compatible 2003-2009 Toyota vehicles. The harness plugs directly into the vehicle's original radio connectors and the factory amplifier, supplying electrical power to the new radio without cutting the factory plugs. Its clearest advantage is speed and convenience during installation, though buyers should confirm vehicle fit in the METRA ELECTRONICS VEHICLE FIT GUIDE before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect fit:\u003c\/strong\u003e The harness plugs into the car's original radio connectors and the factory amplifier so installers do not have to cut factory plugs for a quicker install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor-coded wiring:\u003c\/strong\u003e The harness includes color-coded wires on the aftermarket side to make matching and soldering connections to a new radio easier and clearer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes power harness:\u003c\/strong\u003e The package provides the 70-8113 wiring harness for power so the aftermarket radio receives required electrical connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong leads:\u003c\/strong\u003e At 204 in total length, the wires give plenty of reach for routing to the dash and behind the new receiver without strain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTech support:\u003c\/strong\u003e Seven-day-a-week tech support is available to help with fitment and installation questions when needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory subwoofer note:\u003c\/strong\u003e On select vehicles the factory subwoofer is not retained, so buyers should check audio retention requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Metra 70-8117 is best for vehicle owners and professional installers working on select 2003-2009 Toyota models who want to replace the factory radio quickly while avoiding cutting vehicle harnesses. It appeals to people who value retaining factory connectors and who have basic soldering or crimping skills to attach the color-coded leads to an aftermarket receiver.\u003c\/p\u003e\n\u003cp\u003eIt is not ideal for buyers who need guaranteed retention of factory subwoofers or advanced vehicle interface features such as steering wheel control, navigation integration, or retained video without also purchasing the appropriate interface adapters and dash kits. Confirm fitment in the METRA ELECTRONICS VEHICLE FIT GUIDE before purchase.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpeeds installation by using vehicle-specific connectors and avoiding cutting factory radio plugs.\u003c\/li\u003e\n\u003cli\u003eColor-coded wires and included 70-8113 power harness simplify wiring to an aftermarket radio.\u003c\/li\u003e\n\u003cli\u003eLong wire length gives flexible routing options for installers.\u003c\/li\u003e\n\u003cli\u003eAccessible tech support is available seven days a week for installation help.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome buyers report mixed fit and sound quality outcomes, so compatibility and results can vary by vehicle and system.\u003c\/li\u003e\n\u003cli\u003eFactory subwoofer may not be retained on select vehicles, requiring extra parts to keep original audio features.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eFactory amplifier bypass wiring harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle fit\u003c\/td\u003e\n\u003ctd\u003eSelect 2003-2009 Toyota models (see METRA fit guide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003e70-8117 harness and 70-8113 power harness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHarness length\u003c\/td\u003e\n\u003ctd\u003e204 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnections\u003c\/td\u003e\n\u003ctd\u003ePlugs to original radio connectors and factory amplifier, color-coded aftermarket leads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio retention\u003c\/td\u003e\n\u003ctd\u003eFactory subwoofer not retained in select vehicles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Metra 70-8117 is a practical, value-oriented option for installers replacing radios in compatible Toyota models who want to preserve factory connectors and speed installation. It provides useful wiring length, color-coded leads, and included power harness, but buyers should confirm fit and accept that retaining certain factory audio features may require additional adapters. For straightforward installs where speed and non-destructive connections matter, it is a sensible buy.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this harness retain the factory subwoofer?\u003c\/strong\u003e\u003cbr\u003eOn select vehicles the factory subwoofer is not retained; check the METRA ELECTRONICS VEHICLE FIT GUIDE for your vehicle and plan to add an adapter if subwoofer retention is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to cut factory wires?\u003c\/strong\u003e\u003cbr\u003eNo, this harness plugs into the vehicle's original radio connectors so no cutting of factory radio plugs is needed on the vehicle side.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs technical help available during installation?\u003c\/strong\u003e\u003cbr\u003eYes, Metra provides a tech support number available seven days a week to assist with fitment and installation questions.\u003c\/p\u003e","brand":"Metra","offers":[{"title":"Default Title","offer_id":48121224888539,"sku":"B000A3THKQ","price":43.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61Lusikp4cL._AC_SL1500.jpg?v=1768416172","url":"https:\/\/gearmusthave.com\/products\/metra-70-8117-factory-amplifier-bypass-harness-for-toyota-vehicles","provider":"GearMustHave","version":"1.0","type":"link"}