Metra 70-1743 Receiver Wiring Harness

Connect a new car stereo in select 1987-96 Dodge, Chrysler, Plymouth, Eagle, and Mitsubishi vehicles

Item #: 120701743

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6 Reviews

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Metra 70-1743 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 it 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: You'll need to make a ground connection between your new receiver and your car's metal chassis.

  • 12V constant power
  • 12V switched power
  • power antenna turn-on
  • illumination
  • 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
  • 7.5" Speaker harness
  • Instructions

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:

(Power Harness)

Wire Color Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
Orange Illumination
Orange/White Dimmer
White Left Front Speaker +
Gray Right Front Speaker +
Green Left Rear Speaker +
Violet Right Rear Speaker +

(Speaker Harness)      

Wire Color Function
Blue Power Antenna
White/Black Left Front Speaker -
Gray/Black Right Front Speaker -
Green/Black Left Rear Speaker -
Violet/Black Right Rear Speaker -

No Ground Wire: The wiring harness does not included a ground wire. You will need to ground your aftermarket head unit directly to the vehicle's metal chassis.

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.

Metra 70-1743 Receiver Wiring Harness Reviews

Average Customer Review:

6 reviews
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Written By JD, San Francisco, CA on Friday, December 05, 2014

Crutchfield Customer Review (What's this?)

Great overall product

Pros: Fit and function like OEM connector end.

Cons: No ground wire. Simple fix but heads up would be nice.

Worked Great ! Plug and Play..

Written By FishAholic, Panama City, Fla. on Friday, March 21, 2014

Crutchfield Customer Review (What's this?)

No Problems ! Easy Install for my Amatuer Self !

Pros: Plugged in with Tightness and Works Fine !

Cons: None !

good harness

Written By Miguel, Chicago, Illinois on Thursday, August 01, 2013

Crutchfield Customer Review (What's this?)

Hey can't give a bad review for something that works perfectly! Took a second to remember my soldering skills but I got it together within an hour with heat shrink and everything for superior quality

Pros: Plug n play once it was soldered

Cons: The soldering

Great product

Written By Mark, Chicago illions on Wednesday, June 05, 2013

Crutchfield Customer Review (What's this?)

Great product help out a ton

Pros: Made and easy install

Cons: None

Harness works fine

Written By Jesse, Lexington, KY on Monday, January 16, 2012

Crutchfield Customer Review (What's this?)

Installed head unit using this harness in a 1990 Plymouth Laser, this will work with any first gen DSM Mitsubishi Eclipse, Plymouth Laser, or Eagle Talon. Not sure but it may even work with old 3000GT/Stealths. A little funky to wire as some of the + and - wires are on different connectors for the same speaker, just be sure to pay attention. The right rear or one of the rear speakers was a different color than what the manual said and was different color from the head unit's harness but it was the only one that had me confused. All in all a pretty standard easy install. If you use the factory radio retaining bracket from your Eclipse stock radio it will likely ground the radio out, if not just screw that ground wire into one of the mounting screws on the front of the mounting bracket from the stock radio. Should work fine.

Pros: Perfect fit to factory harness and all speakers work fine. This harness is hard or impossible to find in stock at stores, lucky for us we have Crutchfield. Prepare DSM owners to discard your cassette adapters and FM transmitters.

Cons: Diagram and color mix ups could confuse a novice installer. Recommend installing power supply to harness first, insulating power supply wires and ground and then individually connect one speaker at a time ( both + and - for that particular speaker ) to be sure you've got it all figured out before jamming it in the dash.

Wiring was good instructions poor

Written By Roger, Merrifield MN on Saturday, July 02, 2011

Crutchfield Customer Review (What's this?)

The wiring harness was just fine. But, the instructions for wiring the orange wires seems to be backwards. When I wired the solid orange wire to the white striped orange wire the radio lights would go out when I turned on the cars headlights. I called the service dept. and the tech looked at the diagram and told me to make sure it was wired that way and it should work. I checked and it was wired as instructed and did not work. So, I wired it with the two orange w/white stripe wires together and everything is now working fine.

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