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Metra 70-5003 Receiver Wiring Harness Connect a new car stereo in select 1983-95 Ford, Kia, Mazda, and Mercury vehicles

Item # 120705003

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

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

Item # 120705003

About the Metra 70-5003 Receiver Wiring Harness

Metra 70-5003 Receiver Wiring Harness

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

Metra 70-5003 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: You'll need to make a ground connection between your new receiver and your car's metal chassis.

  • 12V constant power
  • 12V switched power
  • illumination
  • left front speaker +/-
  • right front speaker +/-
  • left rear speaker +/-
  • right rear speaker +/-
READ LESS

What's in the box:

  • 6" Constant power harness
  • 6" Switched power harness
  • 6" Front speaker harness
  • 6" Rear speaker harness
  • Instructions
MFR #70-5003C

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More details on the Metra 70-5003 Receiver Wiring Harness

Stacey B.

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:

(Constant Power Harness)

Wire Color Function
Yellow +12 Volt Constant

(Switched Power Harness)

Wire Color Function
Red +12 Volt Accessory
Blue Power Antenna
Orange Illumination

(Front Speaker Harness)

Wire Color Function
White Left Front Speaker +
White/Black Left Front Speaker -
Gray Right Front Speaker +
Gray/Black Right Front Speaker -

(Rear Speaker Harness)

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

Wiring Note: This harness has no ground wire; the new radio must be grounded to the vehicle chassis.

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

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