Metra 70-5006 Receiver Wiring Harness

Connect a new car stereo in select 1987-93 Ford and Mercury vehicles

Item #: 120705006

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Metra 70-5006 Receiver Wiring Harness

This vehicle-specific wiring harness makes connections between your new car stereo and your car's electrical system.

First, attach the color-coded wires on your Crutchfield-supplied harness to the wires from your new stereo. If you're not using a soldering iron, we recommend that you purchase some wire connectors to secure the connections. Check out our handy article on three ways to connect the wiring harness here.

Now, once this harness is connected to your new stereo, you'll be able to plug right into your car's factory radio connector. This harness saves installation time since you won't have to cut factory wires individually, and this also enables you to re-install the factory radio if needed. A detailed instruction sheet comes with the harness. Warranty: 60 days.

Please read this important note: This harness may not contain provisions for every wire needed to complete your installation, and it will not accommodate special navigation, video, or factory steering wheel control connections. You will need a special adapter if you want your factory steering wheel audio controls to work with your new stereo.

Connections:

Note: Two speaker harnesses are included — one is used if you have a factory amplifier, one is used if you don't. If there is no ground wire in the factory harness, you'll need to make a ground connection between your new receiver and your car's metal chassis.

  • 12V constant power
  • 12V switched power
  • chassis ground
  • power antenna turn-on
  • dimmer
  • left front speaker +/-
  • right front speaker +/-
  • left rear speaker +/-
  • right rear speaker +/-

Note: Most vehicles will require additional installation parts — please identify your vehicle if you haven’t done so, then check here for a list of parts. You can also call an Advisor for more information.

Hands-on research

What's in the box?

Download owner's manual

  • 7.5" Power harness
  • 7" Non-amplified speaker harness
  • 7" Amplified speaker harness
  • Instructions

Product Research

Features

Crutchfield Wiring Harness: Crutchfield wiring harnesses prevent 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 Crutchfield 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 Crutchfield wiring harness into your vehicle's factory radio plug.

Note: Installation tools, hardware, & accessories are not included & sold separately. Please see the Accessories tab for recommendations & availability.

Wiring Notes: If the Crutchfield wiring harness is not equipped with a ground wire, you will need to ground the aftermarket head unit's ground wire to the metal chassis of your vehicle. Some vehicle's may require you to bypass the vehicle's factory amplifier (in another location from factory radio) or hardwire certain connections. If your vehicle is equipped with factory steering wheel controls, an additional adapter is required & sold separately.

Wire Code Chart:

(Power Harness)

Wire Color Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
Black Chassis Ground
Blue Power Antenna
Blue/White Amp Turn-On
Orange Illumination
Orange/White Dimmer
Orange/Black Not Used (tape off)

(Speaker Harness)      

Wire Color Function
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 -
Violet Right Rear Speaker +
Violet/Black Right Rear Speaker -

Two Types of Speaker Harnesses: There are two different speaker harnesses included. Once is to be used for factory-amplified systems & the other for non-amplified systems. Each harness has the same number of wires, but a different connector plug.

The Crutchfield Car Selector: Please visit the Crutchfield Car Selector for your specific type of vehicle.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Metra 70-5006 Receiver Wiring Harness Reviews

Average Customer Review:

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Receiver Wire Harness

Written By John C, Suwanee, GA on Thursday, January 02, 2014

Crutchfield Customer Review (What's this?)

The wiring harness for power was straight forward and instructions were clear. The speaker wire harness directions were not as clear when working with my older (90) Mustangs premium sound system, which required me to use a third harness and connect diretly to the amplifier in the car. Crutchfield was very helpful in directing me to the proper requirement, although getting to the wiring harness on the amplifier was somewhat difficult.

Pros: harnesses fit well with my older model mustangs existing harnesses.

Cons: The instructions were not as clear for the speaker connection harness. I initially used the harness that matched up to the old radio harness, which kept shorting out, before contacting Crutchfield and realizing I had to use the third harness provided and connect directly to the amplifier in the car. Everything worked fine after that.

Receiver Wire Harness

Written By John C., Minneapolis on Wednesday, July 24, 2013

Crutchfield Customer Review (What's this?)

Item installation was poorly described, had to rewire it from scratch because my car had a factory amp in addition to the radio. I'd gladly pay a few bucks more and have a product that contains a set of alternative wiring harnesses that are each pre-wired at both ends so I don't have to solder them. Just pick the right harness and plug and play at both ends. As is, this seems like antiquated technology.

Receiver wire harness

Written By Davidb, Schertz, TX on Saturday, July 20, 2013

Crutchfield Customer Review (What's this?)

Great product to do the job right with. Make swapping out a radio a snap. No more cutting and splicing of the factory harness.

Pros: Makes job easier and faster. Great price

Cons: none

amazing product

Written By Jeremy, fort riley kansas on Monday, May 13, 2013

Crutchfield Customer Review (What's this?)

This wiring harness was exactly what I needed and it got the job done perfectly

Pros: Exact fit with quality manufacturing

Cons: Didnt install itself...

Metra 70-5006 Receiver Wiring Harness

Written By Pmacstang, Ma on Friday, March 22, 2013

Crutchfield Customer Review (What's this?)

A+ for Mustang Fox

Pros: Great fit and bonus instructions

Cons: None

Must get

Written By DT, Colorado on Wednesday, February 22, 2012

Crutchfield Customer Review (What's this?)

DO NOT purchase a radio without these harnesses. They make the install very easy and professional.

Pros: easy, well made, professional looking install

Cons: none

Perfect fit!

Written By John, Houston, Tx on Wednesday, April 20, 2011

Crutchfield Customer Review (What's this?)

The harness was a perfect fit, it made installation a breeze!

Worked perfect!

Written By Sean, Denver on Sunday, February 13, 2011

I bought these for my '93 Ford Escort and they worked absolutely perfect! I
hooked them up with the wiring harness for my Pioneer stereo with Posi
connectors and I installed it and everything went flawlessly. Thanks!

crutchfield rocks

Written By kev-0, gulfcoast,Fl on Wednesday, February 09, 2011

Crutchfield Customer Review (What's this?)

crutchfield makes it so simple,harness was left out of my origanal order-a phone call
really does work when your dealing with crutchfield-it was in my mail box the next
day,great service -great tech help-why would you buy any where else?

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