Scosche FD23B-open box

Wire Harness to Connect an Aftermarket Stereo Receiver to Select 2003-2009 Ford Vehicles

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This item has been discontinued

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Scosche Audio Store

When replacing your factory radio with an after-market car stereo, the Scosche GM02B wire harness is a must for a quick and clean installation. It eliminates cutting your OE radio plug. After connecting it, your install is simple as the wires will color-match and easily connect to the after-market stereo. Without the Scosche GM02B, you would have to cut the OE radio plug and manually test each wire to connect to your after-market receiver.

In addition, because you do not have to cut your OE radio plug off, the GM02B allows you to reinstall your factory receiver if necessary. A great example is if you sold your car, but wanted to keep your after-market radio and re-install your factory stereo receiver. We also recommend the Scosche BOBAZT for a quick connection that is sure to last.

General Features:

  • Harness is used when installing an aftermarket stereo
  • Connects the aftermarket stereo harness to the vehicles factory harness
  • Designed specifically to fit the compatible vehicles
  • Plugs into the factory harness without cutting any wires
  • Standard color coded wires provide a consistent and simplified installation
  • Made from OEM quality materials
  • Compatible with select 2003-Up Ford Vehicles


  • Yellow – 12V Constant
  • Red – 12V Accessory
  • Black - Ground
  • Blue - Power Antenna
  • Brown - Mute
  • Orange – Dash Light Dimmer/Illumination
  • Green – Left Rear Speaker (+)
  • Green with Black Stripe Left Rear Speaker (-)
  • White – Left Front Speaker (+)
  • White with Black Stripe – Left Front Speaker (-)
  • Purple – Right Rear Speaker (+)
  • Purple with Black Stripe – Right Rear Speaker (-)
  • Gray – Right Front Speaker (+)
  • Gray with Black Stripe – Right Front Speaker (-)

Compatibility List:

  • Ford:
    • 2009 Econoline
    • 2004 Excursion
    • 2004 Expedition
    • 2004 Explorer
    • 2005 Flex
    • 2004 Freestar
    • 2005 Mustang
  • Hyundai:
    • 2006 Sonata
  • Mazda:
    • 2008 Tribute
  • Mercury:
    • 2005 Montego
    • 2004 Monterey

Harness Features

Vehicle Sound System
This refers to what kind of sound system the vehicle has. Premium audio systems are generally name brand systems (such as JBL, Bose, Rockford Fosgate, etc) that have been installed inside a vehicle when it leaves the factory. Often they more advanced systems, complex wiring, factory amplifiers, and other features that can make installing aftermarket component difficult.
Standard Sound
Main Harness Function
Different installations on different vehicles require different harnesses. This type is what the harness is considered. Each wiring harness we sell serves a purpose such as installing an aftermarket car stereo, integrating an aftermarket amplifier with your factory car stereo, connecting Bluetooth to your factory car stereo, and more.
Connect/Install an Aftermarket Car Stereo
Compatible Vehicle Make
Allows you to view only items that are compatible with your vehicle's make. Does not guarantee that it will work with your vehicle year or model.
Compatible Vehicle Make and Model
The model of vehicle that this vehicle specific product is designed for. Please keep in mind that engine variations can affect the compatibility of the products.
Ford Econoline
Ford Excursion
Ford Expedition
Ford Explorer
Ford Flex
Ford Freestar
Ford Mustang
Hyundai Sonata
Mazda Tribute
Mercury Montego
Mercury Monterey

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

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Average Attribution Rating

Browse 3 questions and 48 answers
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Why did you choose this?
Sonic Electronix Store
For installation on my truck
Robert F on Jul 19, 2017
Porque es mas facil de adaptar la instalacion
Carlos G on Mar 1, 2017
I need it to work.
Ariel J on Jun 21, 2017
replace factory radio
terrence k on Nov 24, 2016
does this include the wire for connecting the steering wheel control?
A shopper on Dec 26, 2014
Best Answer: I'm sorry, but none of the vehicles I installed stereos in had steering wheel controls. So if the harness included wires for steering wheel controls I would have not looked for or used them - Sorry.

However, the harness that comes with the stereos sold by Sonic Electronix are awesome And really ease installation.

Do note that some stereos that offer steering wheel controls provide a steering wheel control "option", but do not integrate with OEM. Steering wheel controls.
Reply · Report · Tyrone F on Dec 26, 2014
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How many wire connectors is needed?
Jeroy W on Nov 28, 2015
· Add Answer · I Have This Question Too (0)

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Scosche FD23B-open box