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Metra 70-1003 Receiver Wiring Harness

Connect a new car stereo in select 1996-2002 Kia vehicles

7 Reviews

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Item # 120701003

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

Metra 70-1003 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.


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

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.

Worked perfect and instructions were accurate. Will buy from again.

Kia_owner, West Michigan

What's in the Box:


Metra 70-1003 Receiver Wiring Harness Reviews

Average Customer Review(s):

(7 Reviews)

Nice adapter plug!

Kia_owner from West Michigan on 4/6/2015

2000 Kia Sportage
Crutchfield Customer Review (What's this?)

Worked perfect and instructions were accurate. Will buy from again.

Pros: All the wire colors matched. Nice bonus!!

Cons: None

Kia Receiver Wire Harness Reviews

benderb9 from St Petersburg, FL on 3/31/2014

2001 Kia Sportage
Crutchfield Customer Review (What's this?)

Soldered and heat shrunk it up to my JVC's wiring harness at the kitchen table.Matching it up to the included diagram's made it a breeze. Simple plug-in and it was all over. Couldn't have been easier for my 2001 Kia Sportage.

Pros: Allows easy wiring and can be done outside of the vehicle. Well made plug.

Cons: None

Must Have

mcappy1975 from Amesbury, MA on 5/29/2013

Crutchfield Customer Review (What's this?)

Must have connector.. Easy to install and connect



Why Was I Worried?

Mike from Indiana on 9/1/2012

1999 Kia Sportage
Crutchfield Customer Review (What's this?)

I never installed a car stereo before. And I bought a very nice replacement stereo, dash kit, and wiring harness from these people. The price and shipping were fantastic. But I was really worried about this part, the wiring harness. The instructions, diagram, and one phone call to the Tech Support that took about 2 minutes to get the help I needed, and this was a breeze. Any average person could follow the diagram, and do this. I turned the key and she lit up and sounded great. First time installing, what was I worried about? Now I need speakers to replace the factory tissue paper ones I have, and you can bet the farm they're being purchased right here!

Pros: Simple as pie. First time installer, and flew right through it. The diagram and instruction sheet are "idiot proof"!

Cons: Cons? Are you kidding? This could not be any easier, no way to find any "cons" in this sort of quality!

Does what it's supposed to

Alienate from Reno, NV on 1/18/2011

Crutchfield Customer Review (What's this?)

Works fine. Good instructions.



Perfect connection!

Ken from Conyngham, PA on 7/12/2010

2001 Kia Rio
Crutchfield Customer Review (What's this?)

It only took about 5 minutes to connect this harness to the receiver. Excellent instructions as always from Crutchfield. Would not buy from anyone else!



Perfect fit

Joe from Tallahassee, Fl on 7/13/2009

2002 Kia Sedona
Crutchfield Customer Review (What's this?)

Replaced factory radio with Clarion DXZ385USB. Connected wires in my office. Took the old radio out. Plugged right in. Perfect.




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:

Wire Color Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
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 -

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.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

It's compatable with my new speakers! [ Thomas Louis  Jul 05, 2018 ]
Comes with the head unit for free ... hope this works! [ Donald  Mar 13, 2018 ]
Compatible with my device and vehicle. [ Eric  Apr 23, 2017 ]

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