Metra 70-1004 Receiver Wiring Harness

Connect a new car stereo in select 2005-12 Kia and Hyundai vehicles

Item #: 120701004

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46 Reviews | 1 question - 2 answers

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Metra 70-1004 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 makes installing your new stereo easier, and allows you to put the factory radio back when you sell your vehicle or return it at the end of the lease. 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: 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

  • Receiver wiring 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:

Wire Color Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
Black Chassis Ground
Blue Power Antenna
Blue/White Amp Turn-On
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 open the box, verify contents, 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 70-1004 Receiver Wiring Harness Reviews

Average Customer Review:

46 reviews
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Always Works

Written By JimS, University Place, Washington on Tuesday, January 20, 2015

Crutchfield Customer Review (What's this?)

Love Crutchfield - they always sell the correct parts - fits every time!

Pros: Instructions provided - makes the installation a no-brainer

Metro wiring harness

Written By Anonymous, Homer, MI on Sunday, January 11, 2015

Crutchfield Customer Review (What's this?)

Fit exactly as it should. No issues. Perfect!

Plug-N- Play

Written By Clean install, Arizona on Sunday, January 04, 2015

Crutchfield Customer Review (What's this?)

Makes for a clean install. No cutting wires. If you sell the car install old radio and all's good.

Pros: easy connection

Cons: none

Metra 70-1004 Receiver Wiring Harness

Written By Tim, Spokane WA on Monday, October 20, 2014

Crutchfield Customer Review (What's this?)

Worked great; color coding was spot on.

Pros: easy hookup

Cons: none

wiring kit

Written By Zack, Hopewell, Va on Monday, October 13, 2014

Crutchfield Customer Review (What's this?)

Perfect fit. Wired up very easily.

Pros: Works great. Easy install.

Cons: Nothing.

Metra 70-1004 Receiver Wiring Harness

Written By Mark, NM on Wednesday, July 30, 2014

Crutchfield Customer Review (What's this?)

Excellent harness. Perfect fit in factory plug and easy instructions for wiring new radio with the new harness.

Pros: Exact Fit

Cons: None

Metra 70-1004 used in 2007 Hyundai Accent

Written By Jay M., Midlothian on Wednesday, June 25, 2014

Crutchfield Customer Review (What's this?)

Love these harnesses, always make installation very easy!

It works

Written By Anonymous, Chapel Hill, NC on Saturday, March 22, 2014

Crutchfield Customer Review (What's this?)

It's a required piece. It works.

Pros: It has wires

Cons: It doesn't install itself

great product! only one downside

Written By jdawg505, titusville fl on Wednesday, March 05, 2014

Crutchfield Customer Review (What's this?)

Adapter works great and it was free! Only bad thing was it doesn't support the internal AUX the my kia spectra5 has by the parking brake.. from the looks of it the intrnal AUX is running Into the internal wiring harness

wire harness

Written By Tom G, New Jersey on Thursday, February 06, 2014

Crutchfield Customer Review (What's this?)

worked great. I made a mistake while wiring but a call to Crutchfield tech was able to quickly fix

Pros: easy to wire

Cons: none

worked as advertised

Written By Humphrey in VA, Vienna, VA on Monday, February 03, 2014

Crutchfield Customer Review (What's this?)

worked as advertised

Wire Harness

Written By Mike, West Oneonta on Sunday, January 19, 2014

Crutchfield Customer Review (What's this?)

I'm very pleased with how easy the installation went.

Pros: Very easy instructions to follow! I live that Crutchfield includes this for free.

Cons: None

Wire Harness

Written By Bruce, Washington State on Friday, December 27, 2013

Crutchfield Customer Review (What's this?)

Worked great. Easy to use. Thank you.

Pros: Worked exactly as needed.

Cons: none

Wire harness

Written By Michael D., Newfield, NJ 08344 on Tuesday, December 24, 2013

Crutchfield Customer Review (What's this?)

Perfect part no cutting of wires.

Pros: Attached to radio and connected to factory wire harness without cutting anything.

Cons: None

Doesn't fit @008 Accent SE with XM radio

Written By Anonymous, Palm Bay Florida on Wednesday, November 20, 2013

Crutchfield Customer Review (What's this?)

Good product but doesn't fit the xm radio in the Accent SE.

Receiver Wire Harness

Written By Dweezel, Columbus, OH. on Friday, October 04, 2013

Crutchfield Customer Review (What's this?)

It probably would have been easier to install harness if I didn't hack up the wire harness from a previous install of another piece of equipment, as it was I had to reattach the speaker wires and this took a little bit of time. I will probably go back in and remove this piece and just hardwire everything to the back of the radio.

Pros: It is a nice piece of equipment, if you don't do what I did first to the SUV.

Cons: None

absolutely the wrong harness

Written By MagothyBob, Pasadena, MD on Monday, September 23, 2013

Crutchfield Customer Review (What's this?)

Nice adaptor for free but did not fit the factory harness for my 2009 Hyundai Accent. The Accent had 4 separate harnesses and this one did not mate with any of them. I had to look up the color code on line and hand solder the radio's connector to the factory wires after cutting off the factory connectors.

Pros: Free with stereo

Cons: Did not fit my car harness.

Crutchfield response on Tuesday, September 24, 2013 We forwarded this review to our Technical Support team for follow-up. Lifetime tech support comes with every Crutchfield purchase.

Metra 70-1004 Receiver Wiring Harness

Written By Anonymous, boise id on Thursday, September 05, 2013

Crutchfield Customer Review (What's this?)

perfect fit for 07 Entourage

Kia Correct

Written By Wildone2, Woodstock, GA on Sunday, September 01, 2013

Crutchfield Customer Review (What's this?)

Wiring the harness with adapter is the way to go. Just be sure that it is the correct part for your car prior to actually wiring together and then it's fast and easy. Actually did two different cars using adapters and made me look like a pro to the wife and daughter!!!

Pros: Worth every penny!

Cons: None

Gread addition

Written By Alex, Lebanon, PA on Tuesday, August 06, 2013

Crutchfield Customer Review (What's this?)

Great piece to use rather than trying to figure it out with the factory harness.

Nice Harness

Written By CC Lattee, Here on Monday, April 29, 2013

Crutchfield Customer Review (What's this?)

Worked perfectly!

Wire harness

Written By DavidB, Longview, TX on Thursday, January 03, 2013

Crutchfield Customer Review (What's this?)

Simple directions, just need some crimpers and some splices.

Pros: Colors matched perfectly to my receiver's harness

Receiver Wire Harness

Written By SgtMartin, Grand Prairie,TX on Sunday, September 09, 2012

Crutchfield Customer Review (What's this?)

Even a Caveman can use it.

Pros: Easy and strait forward install

Wire Harness adapter

Written By Jim C, Gautier, MS on Tuesday, July 10, 2012

Crutchfield Customer Review (What's this?)

Great Item. All wires are color coded to the radio wires to butt splice the Radio Wires to the adapter is self explanatory and fits perfectly with the car harness.

Pros: Simple and easy

Cons: None

Metra 70-1004 Receiver Wiring Harness

Written By Anonymous, Marion, NC on Monday, July 09, 2012

Crutchfield Customer Review (What's this?)

I received this adapter with the stereo that I purchased. It was easy and pretty straight forward to install. The wires were clearly marked and everything worked perfectly when installed.

Right harness

Written By iuseamac, Raymond, WA on Monday, June 18, 2012

Crutchfield Customer Review (What's this?)

It fits.

Pros: It fits.

09 Hyundai Elantra

Written By Francois, Greeley, CO on Sunday, April 15, 2012

Crutchfield Customer Review (What's this?)

I got this wiring harness along with the dash kit for free when I purchased a new head unit for my car. I was so glad that I did! I downloaded some wiring diagrams from Hyundai forums but wound up not needing them because of this little baby! the day my box from Crutchfield arrived I was able to pull the diagram from this harness and match it up with the head unit. took me all of about 10 min to get the prep work done before I even opened the dash. thanks to the instructions as well (From Crutchfield again for free!) opening up the dash was a snap and because of this harness, installing the head unit was literally plug and play! now if I ever sell the car, i can put the stock stereo back in and no one will know the difference!

Pros: Plug and play! cut my installation time in half!

Cons: I don't consider it a con, but the harness doesn't allow you to utilize the aux jack in front of the gear shifter, or the remote controls on the steering wheel. In my case, my model of Hyundai didn't have the steering wheel controls, and the head unit I installed has an aux jack built into it! TRUST ME I do not miss the stock stereo in the LEAST!!!

Kia wiring harness

Written By Mb, Edgewater, FL on Thursday, March 15, 2012

Crutchfield Customer Review (What's this?)

Couldn't be easier! A fine product

Good Product

Written By M F, Dragoon, AZ on Monday, November 21, 2011

Crutchfield Customer Review (What's this?)

This wireing harness made installing the radio a snap.

Pros: Worked as advertised

Cons: Nothing

Works perfectly!

Written By Brian, San Antonio, TX on Thursday, August 18, 2011

Crutchfield Customer Review (What's this?)

This harness made install easy and it works perfectly! I'm glad this was included with my install kit!

2008 Kia Optima

Written By Glenn M, MD on Friday, February 04, 2011

Works great. Mates perfectly to dash connector. It would be better if they
populated the pins used for the steering wheel buttons. That would make it
easier to use an aftermarket adaptor.

Metra 70-1004 Receiver Wiring Harness

Written By karl, IL on Thursday, January 27, 2011

Crutchfield Customer Review (What's this?)

great wiring tie in very easy to install no cutting into factory wires all
connections made from connector to connector, very clean application,
instructions complete. highly recommend. my application sony radio into a
kia-sedona i bought the recommend crutchfield kit , I would not have done it
with out it.

Hyundai Receiver Wire Harness

Written By Frank, Las Vegas, NV. on Sunday, November 07, 2010

Crutchfield Customer Review (What's this?)

Fit perfectly. Made the install simple.

Not the right one for ME.

Written By zachbo, DeRidder, LA on Wednesday, November 03, 2010

Crutchfield Customer Review (What's this?)

Bought this for a 2008 Hyundai Accent. I guess this is the right one for most 08's. But if
you have an 08 with the XM radio/CD, you need to search under the 2009 model. Best
advice is to pull the radio out before ordering. Crutchfield has done a good job with the
photos and arent using a generic pic for ALL wiring. Makes life easy, look at yours and
refer to the pics to ensure you get the right one. Tech support is A+, called after normal
buisness hours and they were about to get the new one shipped the following morning.
Great service. Thx.

good item

Written By Mike, Desert Hot Springs, Ca on Saturday, October 30, 2010

Crutchfield Customer Review (What's this?)

The item was perfect. Although I Had the radio installed by a pro the wireing
harness was right for my car.

Metra 70-1004 Receiver Wiring Harness

Written By phillygeorge, Philadelphia, Pa on Sunday, September 12, 2010

Crutchfield Customer Review (What's this?)

Followed the instructions went in like a charm. Very easy to do.

Fits 2008 Rio

Written By Drew, West Virginia on Wednesday, May 12, 2010

Crutchfield Customer Review (What's this?)

Works great in my 2008 Rio. Only problem is the factory Aux input doesn't work now. Not a problem since the new head unit has one in the front. Overall good product.

Perfect fit for 2006 Accent

Written By Rick, Calimesa, CA on Monday, April 26, 2010

Crutchfield Customer Review (What's this?)

Perfect fit and matched up exactly with my JVC KD-AHD69. I chose to solder and shrink
wrap my wires, so the longer strip wasn't a problem.


Written By flrhcarr, Puyallup, WA on Friday, March 05, 2010

Crutchfield Customer Review (What's this?)

As most adapters, it fits right in place. Plenty of wire length to work with the stereo a little further back from the dash. A little over stripped, but that's easily clipped off. Combined with the stereo harness, the only pain were the factory wires being short.
Clear installation to adapt to the stereo, with the harness laid out on the sheet. Made soldering a breeze. Especially, where I installed an amp & had to run speaker wires.
Having this come with the unit, is great. Thank you for all of the freebies you do send.


Written By rw, indy on Friday, January 29, 2010

Crutchfield Customer Review (What's this?)

Fits great, great instructions. Only wish it had come with solderless connectors, only thing
that slowed down my installation.

Could be better...

Written By lifterguy, Pittsburgh, PA on Wednesday, September 23, 2009

Crutchfield Customer Review (What's this?)

This harness fit my 2007 Kia Rondo EX (with Infinity sound system), and came with good instructions. But unfortunately it is missing the two pins & wires for the steering wheel controls. That made it much more difficult to install the steering wheel control interface required for my new system. Crutchfield confirmed that they don't offer a harness that has those two pins. So they save 50-cents by not including two pins and two wires (which admittedly might not be needed by most Kia owners) and I spend an extra couple of hours trying to figure out how to make this work with my car. Disappointing. Add those two pins & wires and I would give this 5-stars.

works great

Written By Mario, baltimore, md on Monday, March 30, 2009

Crutchfield Customer Review (What's this?)

this adapter matched each color of my original sony radio installation was a breeze be aware to order with this the Item #060CCC1418 which are the Installation Edge Crimp Caps when you buy this they make the job very easy, if you dont you will endup havin gto order later and paying almos U$10 with shipping, crutchfiled should add this as part of the package. it is a gotcha once you start reading the installation instruccions, unless you want to spend your evening soldering each cable, so product is great just minus one start for not sending the crimp caps when you buy the entire installation kit for your car from crutchfiled

Very Easy

Written By Matt, Atlanta, GA on Thursday, January 22, 2009

Crutchfield Customer Review (What's this?)

The wires all matched up by color for our Entourage, but I checked the instructions just to be sure. The instructions were minimal, but got the job done. This was one less headache to worry about.

Metra 70-1004 Receiver Wiring Harness

Written By Denny, Point Pleasant, West Virginia on Tuesday, September 16, 2008

Crutchfield Customer Review (What's this?)

I don't know if I have a strange car but this harness did not fit my 2008 Accent with the radio delete option, made one call to crutchfield and spoke to a tech sent him a picture of the plugs on the car and the correct one was on the way!!! A1 service!!!!!!!!!!! Thanks a million!!!

Toooo easy

Written By Spanky, Hazard, Ky. on Monday, June 02, 2008

Crutchfield Customer Review (What's this?)

This was a breeze to
wire up to the
stereo receiver.
Most all wires are
the same color and
the diagram included
is easy to follow.
15 minutes to wire

Metra 70-1004 Receiver Wiring Harness

Written By tmusgrove, Dallas, TX on Tuesday, February 12, 2008

Crutchfield Customer Review (What's this?)

This works great. The only draw back was the diagram in the instructions did not match the harness and required a call to support (reason for 4 star rating). Crutchfield support resolved the issue in no time. I would recommend this product to anyone needing to convert from factory to aftermarket audio system. It was a pleasure doing business with Crutchfield their support is great, I would highly recommend to anyone and I will purchase from them again.
(2007 KIA Sportage)

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Questions & Answers Ask the community. Share your knowledge.

1 question already asked

Thank you for the prompt response to my questions and concerns. Yeah, you present a valid point about talking to an Advisor. I just figured first asking the question in this manner would not hurt anything and potentially gain the answer I am looking for. However, I believe I will go ahead with the online chat and just see what happens. Right now, I am sort of discouraged because I have been at this for the past 3 months trying to see what can be done to integrate the factory setup. I know it is possible for some packages, but there are some that just have those slight differences to throw everything off. Anyway, thanks again! [ mcbrfoss  Feb 02, 2014 ]
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you. [ Krissy  Feb 02, 2014 ]  Staff

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