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Metra 70-1397 Receiver Wiring Harness

Connect a new car stereo in select 1982-86 Toyota vehicles

Item #: 120701397

5 Reviews

This item is no longer available.

Original Price: $4.99

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Metra 70-1397 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: This harness does not include rear speaker wires. It may be necessary to either splice your receiver's rear speaker wires to existing wires (if present), or run new rear speaker wires — see "Accessories" for speaker wire.

  • 12V constant power (single yellow wire and connector)
  • 12V switched power
  • chassis ground
  • power antenna turn-on
  • dimmer
  • left front speaker +/-
  • right front speaker +/-

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.

Metra 70-1397 Receiver Wiring Harness Reviews

Average Customer Review:

5 Reviews

Metra 70-1397 Receiver Wiring Harness

Written by: Anonymous from Barranquitas, Puerto Rico on April 7, 2014

1985 Toyota Pickup
Crutchfield Customer Review (What's this?)

Nice item. I reccomended this.

Pros: Easy install


86 MR2

Written by: Pete L from Turnersville, NJ on June 21, 2013

Crutchfield Customer Review (What's this?)

Plugged into my wire harnes perfectly. Connection instructions were perfect.

Pros: Worked the first time

Cons: None

Metra 70-1397 Receiver Wiring Harness

Written by: Anonymous from Oregon on May 9, 2013

1985 Toyota 4Runner
Crutchfield Customer Review (What's this?)

Does what it's supposed to do.



Great tinesaver - well worth it.

Written by: BobR from Pleasanton, CA on January 25, 2012

1986 Toyota MR2
Crutchfield Customer Review (What's this?)

This harness made installation of my Dual XDMA6355 radio in my 1986 Toyota MR2 a snap. What I really like about it is I did not have to make a single mod to the factory harness or connector to install my radio. Thanks Crutchfield for making this available.

Pros: Provides for very easy installation of radio. No modification of car factory wiring needed.

Cons: None

Metra 70-1397 Receiver Wiring Harness

Written by: David from Maryland on May 20, 2011

1986 Toyota MR2
Crutchfield Customer Review (What's this?)

These 2 connectors fit my '86 MR2.



Hands-on research

What's in the box?

Download owner's manual

  • 8" Switched power/speaker wiring harness
  • 7.5" Constant power wiring harness

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 Ground
Blue Power Antenna
Orange/White Dimmer
White Left Front Speaker +
White/Black Left Front Speaker -
Gray Right Front Speaker +
Gray/Black Right Front Speaker -

(Constant Power Harness)

Wire Color Function
Yellow +12 Volt Constant

Speaker Wire Note: This harness does not include rear speaker wire leads. It may be necessary to either splice your aftermarket receiver's rear speaker wires to existing wires (if present), or run new rear speaker wires.

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.