Metra 70-7903 is a radio replacement wiring harness for select Mazda vehicles. It connects an aftermarket radio to the factory radio plug so power, ground, and speaker connections can be made without cutting the vehicle’s factory wiring. At a Glance Radio replacement wiring harness for select Mazda vehicles Plugs into the vehicle’s original radio connectors on one side Color-coded leads connect to the aftermarket radio harness Supports power, ground, and four-speaker radio connections where applicable Helps avoid cutting factory radio wiring System / Wiring Notes Additional parts such as a dash kit, antenna adapter, steering wheel control interface, or vehicle data interface may be required Verify exact Mazda model, trim, and factory radio connector before installation Exact Vehicle CompatibilityFind your vehicle below, then match the model year and factory-equipment details in the same row. Factory radio, amplifier, navigation, trim, speaker location, and connector differences can change which installation parts are required. If anything differs, contact MCOR before ordering. Make Model Years Factory Equipment / Qualifier Application FIAT Fiat 124 Spider 2017 Base model, non-touchscreen; Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda 2 2011-2014 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda 3 2004-2009 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda 3 2010-2013 Factory amplified audio system Radio/amp integration harness for amplified system Mazda 3 2010-2013 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda 5 2006-2007 With factory navigation; Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda 5 2006-2010 Without factory navigation; Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda 5 2008-2010 With factory navigation; Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda 5 2012-2015 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda 6 2009-2013 Factory amplified audio system Radio/amp integration harness for amplified system Mazda 6 2009-2013 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda 6 2014-2015 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda 626 2001-2002 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda CX-5 2013-2015 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda CX-5 2016 all except Sport trim; Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda Miata 2001 Without Bose amp; Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda Miata 2002-2005 Factory amplified audio system Radio/amp integration harness for amplified system Mazda Miata 2002-2005 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda Millenia 2002 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda MPV 2003-2006 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda MX-5 Miata 2006-2008 Factory amplified audio system Radio/amp integration harness for amplified system Mazda MX-5 Miata 2006-2008 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda MX-5 Miata 2009-2015 Factory amplified audio system Radio/amp integration harness for amplified system Mazda MX-5 Miata 2009-2015 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda Protégé, Protégé5, MP3 2001-2004 Non-amplified factory audio system Radio wiring harness for non-amplified system Mazda Tribute 2002-2006 Non-amplified factory audio system Radio wiring harness for non-amplified system Fitment note: Year and model alone are not always enough to confirm compatibility. Match every factory-equipment qualifier shown for your vehicle, and contact MCOR Automotive if the radio, amplifier, navigation, speaker, camera, trim, or connector details are uncertain.Installation Notes Confirm exact year, make, model, factory audio system, trim level, and radio connector before installation Additional installation parts such as a dash kit, antenna adapter, steering wheel control interface, or vehicle data interface may be required Professional installation is recommended for best results Check the manufacturer instructions and current vehicle fit guide before installation What’s in the Box Metra 70-7903 radio replacement wiring harness Technical Specifications Brand: Metra Model: 70-7903 Product Type: Radio replacement wiring harness Application: Select Mazda aftermarket radio installations Compatibility Type: Vehicle-specific Connection Type: Factory radio connector to color-coded aftermarket radio leads Identifiers & Packaging MPN: 70-7903 UPC: 086429084739 Sold As: Each Included Components: Radio replacement wiring harness Why Buy From MCOR Automotive Authorized retailer for the brands we sell Specialists in vehicle audio integration, radio replacement parts, and installation accessories 22+ years of professional automotive electronics experience Expert support for compatibility verification and proper setup
