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Metra MET-FD4 Car Stereo Interface harness for 2005 - 2014 Ford, Lincoln, Mazda and Mercury Vehicles
- Audio interface harness and control box for 2005 and Up Ford vehicles
- Complete car stereo integration harness for Amplified and Non-Amplified audio systems
- Provides RAP (Retained Accessory Power), navigation outputs like reverse, parking brake, VSS, etc., and high level speaker input
- High level speaker inputs for connections to factory speakers
- Low level subwoofer connections
- Steering wheel interface built in
The Metra MET-FD4 is a cost-effective, highly reliable data interface that allows you to retain critical factory vehicle functions when replacing the OEM radio with an aftermarket head unit.
Engineered specifically for Ford, Lincoln, and Mazda vehicles from 2005–2014, this interface supports both non-amplified and amplified factory audio systems. It delivers seamless integration for steering wheel audio controls, NAV outputs, and accessory power — making it an ideal solution for professional installers and DIYers using radios purchased from online retailers.
Metra MET-FD4 Car Stereo Interface harness for 2005 - 2014 Ford, Lincoln, Mazda and Mercury Vehicles- Features
- Retains steering wheel audio controls (SWC)
- Provides essential NAV outputs: Parking Brake, Reverse, and Vehicle Speed Sense
- Built-in accessory power output (12V)
- Quick and easy DIP switch programming for SWC configuration
- Compatible with most major aftermarket radio brands
- Type-C USB updatable firmware
- Supports both non-amplified and amplified systems
- All outputs rated at 250mA
- Metra MET-FD4 Car Stereo Interface harness for 2005 - 2014 Ford, Lincoln, Mazda and Mercury Vehicles Instruction manual
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Connections:
- Yellow – 12V Constant
- Red – 12V Accessory
- Black - Ground
- Orange – Dash Light Dimmer/Illumination
- Blue - Power antenna turn on (+)
- Light Green - Parking brake wire(-)
- Blue with Pink Stripe - VSS (Vehicle speed sensor)
- Green with Purple Stripe - Reverse wire (+)
- 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 (-)
- White RCA – Left Subwoofer signal
- Red RCA – Right Subwoofer signal
- Ford
- 2007 - 2010 Ford Edge
- 2008 - 2012 Ford Escape
- 2007 - 2014 Ford Expedition
- 2006 - 2010 Ford Explorer
- 2007 -2010 Ford Explorer Sport Trac
- 2009 -2014 Ford F-150
- 2008 -2012 Ford F-250 Super Duty
- 2008- 2012 Ford F-350 Super Duty
- 2005 -2007 Ford Five Hundred
- 2009 - 2012 Ford Flex
- 2008 - 2011 Ford Focus
- 2006 - 2012 Ford Fusion
- 2005 - 2013 Ford Mustang
- 2008 - 2012 Ford Taurus
- Lincoln
- 2009 - 2012 Lincoln MKS
- 2007 - 2010 Lincoln MKX
- 2007 - 2012 Lincoln MKZ
- 2007 - 2014 Lincoln Navigator
- Mazda
- 2009 - 2011 Mazda Tribute
- Mercury
- 2007 - 2011 Mercury Mariner
- 2006 - 2011 Milan
- 2005-2007 Mercury Montego
- 2006-2010 Mercury Mountaineer
| Manufacturer | Metra |
|---|---|
| Part Number | MET-FD4 |
| Integration Module | Radio Replacement and Steering Wheel |
| Wiring harness function | Retain OEM Subwoofer, Retain Factory Steering Wheel Controls, Replace Factory Radio |
| Steering Wheel Control | Yes, Built in control |
| RCA Pre-amp Audio inputs | 1 Pair |
| Speaker level inputs | No |
| Warranty | 1 Year |
| UPC Code | 086429515110 |
| Return period | 30 days |
| Exchange period | 30 days |
Wiring Harnesses Explained
What do all of the wire colors mean? Aftermarket manufacturers have made car stereo receiver installation an easier process by using a standardized wire color scheme. We walk you through what each individual wire does, this way if you have an installation that doesn't perform properly you will have the resources to begin troubleshooting your installation.






