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Metra 70-1773 Receiver Wiring Harness

Connect a new car stereo in select 1985-94 Subaru vehicles

3 Reviews

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Item # 120701773

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

Metra 70-1773 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.


Note: The speaker negatives are electrically the same for the left and right side speakers. Most aftermarket receivers (and all that Crutchfield sells) will need an additional adapter, or you may run new speaker wires from your receiver to the speakers — see "Accessories" for speaker wire.

  • 12V constant power (separate yellow wire and connector)
  • 12V switched power
  • chassis ground
  • power antenna turn-on
  • illumination
  • left front speaker +
  • right front speaker +
  • left rear speaker +
  • right rear speaker +
  • left front & rear -
  • right front & rear -

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

was awesome..easy to connect with crutchfield connectors...all color coded..great

few, bethel, ak

What's in the Box:

  • 8" Switched Power/Speaker harness
  • 7.5" Constant power harness
  • Instructions

Metra 70-1773 Receiver Wiring Harness Reviews

Average Customer Review(s):

(3 Reviews)

metra harness

anderson from Greenbank, WA on 4/6/2015

1987 Subaru GL
Crutchfield Customer Review (What's this?)



Cons: Unfortunately not 1 wire matched in color to the instructions. wires were cut by someone previously. Need to wire in all new wiring throughout in order to install.

wire harness

few from bethel, ak on 1/28/2014

1990 Subaru Loyale
Crutchfield Customer Review (What's this?)

was awesome..easy to connect with crutchfield connectors...all color coded..great

Pros: easy to attach..color coded...

Cons: none

Metra 70-1773 Receiver Wiring Harness

maingig from Odell, OR on 5/9/2013

1991 Subaru Loyale
Crutchfield Customer Review (What's this?)

Exact part! High quality harness!




Hands-on research

Product Research


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:

(Switched Power/Speaker Harness)

Wire Color Function
Red +12 Volt Accessory
Black Chassis Ground
Blue Power Antenna
Orange Illumination
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 -

(Constant Power Harness)

Wire Color Function
Yellow +12 Volt Constant

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 verify what’s in the box, 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.