About the Metra 70-1776 Wiring Harness
What's in the box:
Metra 70-1776 Wiring Harness owner's manual
If you need assistance accessing this owner's manual, please give us a call.- Power/ground harness
- Speaker wire harness
- Amp turn-on/Subwoofer harness
- RSE harness
- NAV/SWC harness
Other info:
- MFR # 70-1776
- Item # 120701776
- California customers: Please click here for your Proposition 65 WARNING.
More details on the Metra 70-1776 Wiring Harness

Product Research
Features
Wiring Harness: This wiring harness prevents you from having to cut your vehicle's factory radio plug when replacing your factory radio with an aftermarket head unit. Simply solder or crimp the wiring harness to your aftermarket head unit's harness (solder & crimps not included), plug the aftermarket head unit's plug into the rear chassis of the aftermarket head unit, and plug the wiring harness into your vehicle's factory radio plug.
Vehicle Compatibility: The 70-1776 harness is compatible with the following 2003-2007 Ford, Lincoln, and Mercury vehicles with factory navigation.
Make | Model | Year |
---|---|---|
Ford | Escape Hybrid | 2006-2007 |
Expedition | 2003-2006 | |
Lincoln | Navigator (without THX Amps) | 2003-2006 |
Mercury | Mariner | 2006-2007 |
Wiring Notes: This harness allows you to retain your vehicle's factory subwoofer amp, rear seat entertainment (RSE), and steering wheel controls (SWC). The harness also contains vehicle speed sense (VSS) and reverse wires.
Wire Code Chart:
Harness Type | Wire Color | Function |
---|---|---|
Power/Ground | Red | +12 Volt Accessory |
Yellow | +12 Volt Constant | |
Black | Chassis Ground | |
Orange | Illumination | |
Speaker | White | Left Front Speaker + |
White/Black | Left Front Speaker - | |
Gray | Right Front Speaker + | |
Gray/Black | Right Front Speaker - | |
Green | Left Rear Speaker + | |
Green/black | Left Rear Speaker - | |
Purple | Right Rear Speaker + | |
Purple/black | Right Rear Speaker - | |
Amp/Sub | Blue/white | Amp Turn-On |
Black/white | Amp Ground | |
White RCA | Mono-Sub | |
RSE | Blue/white | RSE Turn-On |
Black/white | RSE Ground | |
White RCA | Left Rear Speaker Channel | |
Right RCA | Right Rear Speaker Channel | |
NAV/SWC | Blue/pink | Vehicle Speed Sensor |
Green/violet | Reverse Gear | |
Gray/red | SWC |
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Customer Q&A
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After checking all of my local mobile audio shops and having a few of the wrong harnesses presented to me, I finally bought the right one from Cruchfield. First try, right harness, perfect fit, great detailed instructions.
Aaron from United States