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Metra 70-7304 Receiver Wiring Harness

Connect a new car stereo in select 2010-up Hyundai and KIA vehicles

Item #: 120707304

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17 Reviews | 2 questions - 5 answers

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Metra 70-7304 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: 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 70-7304 Receiver Wiring Harness Reviews

Average Customer Review:

17 Reviews

Plug Harness

Written by: Chuck from Florida on January 11, 2016

2011 Hyundai Tucson
Crutchfield Customer Review (What's this?)

Plugs fit factory plugs

Pros: Looks professional after I chose to solder the connections and use shrink tubing.

Cons: You might have to match up a different color wire on the after market plug, but ounce you do everything works great.

I got the hook up

Written by: Optima Prime from Kentucky on September 21, 2015

2011 Kia Optima
Crutchfield Customer Review (What's this?)

My first time messing with an install. Being color blind, things went a little slow but I was able to get everything matched up except for 2 wires that had different colors than what Alpine unit and SWI RC said to tie into. A quick call to Crutchfield fixed it and amazingly everything worked first try. I looked at buying everything separate from another famous online vendor and could've saved $ but so glad I had Crutchfield to support me. I don't think I would've ever figured out where that the orange green wire was my tie into the steering wheel harness. Still a very easy install.

Pros: Everything worked perfectly

Cons: Instructions from Metra conflict with SWI RC


Written by: Jose from Santa Cruz co., CA on April 10, 2015

2013 Hyundai Sonata GLS
Crutchfield Customer Review (What's this?)

Perfect fit. No complaints.

Pros: Perfect fit.

Cons: None


Written by: Ángel Luis from Puerto Rico on March 12, 2015

2014 Hyundai Accent
Crutchfield Customer Review (What's this?)

Easy to install



Metra 70-7304 Receiver Wiring Harness

Written by: Anonymous from Kissimmee fl on March 10, 2015

2011 Hyundai Sonata GLS
Crutchfield Customer Review (What's this?)

No good


Cons: Cables comes out

Works as it should

Written by: Good fit from Fort Worth, TX on February 22, 2015

2013 Hyundai Elantra
Crutchfield Customer Review (What's this?)

works as it should. Had a few issues with the pins popping out. Could have been my fault....just be careful when connecting to harness and check the pins after its connected.

Pros: exact fit

Cons: none

Wiring Harness

Written by: Rossco56 from Ohio on January 23, 2015

Fits perfectly

Pros: Another great product from crutchfield

Cons: None

Works great with Hyundai Santa Fe

Written by: Gerret M. from Georgia on December 7, 2014

Crutchfield Customer Review (What's this?)

Does what it is supposed to do - boy there are quite a number of wires to connect..

Pros: Does what is is designed to do

Cons: None

Do your homework BEFORE calling Crutchfield

Written by: Laura from Fort Wayne, IN on June 24, 2014

This is less about the product and more about customer service. I have a 2013 Hyundai Veloster and the website said it was for my car - but it's now been updated after my issue to show that it's not for my car. I called Crutchfield and was reassured this is the correct harness. So, I ordered it. I've installed all my own stereos in the past but the local guys implied that my vehicle could be slightly difficult. But, the product advisor insisted it's not. Well, I made my connections, double and triple checked my work then installed the stereo. Hmm....sound is off. Unable to fade to the back speakers. Uninstalled and checked everything again....Nope....sound still off. Called into Crutchfield, next person assured me again that this is the right harness and suggested something is wrong with the stereo. I was able to get my hands on another Sony and tried again. Same problem. Now I know it's the harness. Bought another one from somewhere else - same sound issues. After a week of troubleshooting and trying other options, I called Crutchfield again and explained everything. I was transferred to RJ who put me on hold while he searched for answers. He came back with some good info and confirmed it with Metra - this is the WRONG harness. The right one IS $150. But, There may be an alternate way of wiring this harness to work with my system. I'll know this week. If everything works, RJ is my hero. Crutchfield has since updated their website.

Pros: Low price. Should be simple if it's the right harness for your car. RJ is the example of excellence the rest of Crutchfield's advisors should follow. He should get a bonus or an extra paid day off for going overboard on my issue.

Cons: Crutchfield didn't do their homework before listing this as the harness for 2013 Hyundai Veloster (and I'm sure a few other models). They've since corrected their mistake but only after almost two weeks of my failure after they assured and reassured me this was the correct part. Now I'll question if they know what they're talking about if I ever need help again. Maybe I'll be able to contact RJ directly if I need to.

Metra 70-7304 Receiver Wiring Harness

Written by: Anonymous from West Palm Beach, FL on June 6, 2014

2013 Hyundai Genesis
Crutchfield Customer Review (What's this?)

Everything that you need for a clean install.

Pros: A few crimps and everything is plug and play



Written by: great from Chaska mn on March 7, 2014

2012 Hyundai Sonata GLS
Crutchfield Customer Review (What's this?)

Great Product

Pros: Fits

Cons: None at all

hyundai harness adaptor

Written by: chad w from milton, fl on January 6, 2014

2013 Hyundai Accent
Crutchfield Customer Review (What's this?)

very good

Pros: easy and seems to be quality


great value

Written by: alejandro from miami on October 20, 2013

2013 Hyundai Tucson
Crutchfield Customer Review (What's this?)

Best price in the market



Wiring kit

Written by: Mr.5point7 from Ca on September 12, 2013

Crutchfield Customer Review (What's this?)

The product is great the shipping sucks took way to long should use on track instead of ups

Pros: Great product

Cons: Shipping sucks takes way to long


Written by: Anonymous from Flower Mound, Texas on July 1, 2013

2011 Hyundai Sonata SE
Crutchfield Customer Review (What's this?)

I liked how all the colors matched and it made my life a lot easier than trying to do it without a harness.

Pros: It worked... mostly

Cons: The black wire that was labeled to the steering wheel harness was in the wrong spot. I had to jump to negative to get it to work. It wasn't a big deal but it was an hour of troubleshooting that I'll never get back.

Metra 70-7304 Receiver Wiring Harness

Written by: Anonymous from Oklahoma City, OK on May 6, 2013

2013 Hyundai Sonata GLS
Crutchfield Customer Review (What's this?)

Worked as planned. all of the wiring was where it said it should be and it connected to the car with no issues

Pros: great kit to help with installation

Cons: none

Wirin Harness for 2012 Kia soul

Written by: Walt from Tampa, FL on July 11, 2012

Crutchfield Customer Review (What's this?)

This does fit the Kia Soul for the 2.0 L non Evo cars. It also move with the wiring for the speed sensor and the wire for the steering wheel controls. I personally needed 3 of these harnesses and pulled the pins out of 2 of them to integrate the factory kia USB Aux input and Microphone inputs so I didn't void my electrical warranty.

Pros: Quality harness, fits tfactory plug correctly and all of the wire ae in the correct place.

Cons: None.

Hands-on research

What's in the box?

Download owner's manual

  • 8" Power harness
  • 8" Speaker 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 Harness)

Wire Color Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
Black (thick) Chassis Ground
Black (thin) Steering Wheel Control Ground
Green/Orange Steering Wheel Control Signal
Blue/Pink Vehicle Speed Sensor
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 -

(Speaker Harness)

Wire Color Function
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.

Customer Q&A

Crutchfield asked  
Why did you buy this?

This is the item I need thats fits my car. [ MACK  Feb 04, 2016 ]
installing double din unit in my 2013 Hyundai elantra gt [ robert  Jan 02, 2016 ]
Ease of connecting new unit to factory harness [ Jeff  Dec 14, 2015 ]
why i pick this part, well i need it for the radio to work. lol [ Larry  Dec 10, 2015 ]

2 questions already asked

If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: Or try our online support center: [ Krissy  Jan 31, 2015 ]  Staff
Yes you Wil lose them. You need to purchasE an adapter that will interface to use the string wheel controls. [ BENJAMIN  Jul 30, 2014 ]
I had the harness professionally installed. After the install, only the volume and radio station/cd track controls functioned. This condition left me with two options: do nothing and let the frustrations build or convert back to stock. I chose the latter. [ JAMES E  Jul 30, 2014 ]
I paid a local big box store to put the unit in. Did not see how it was wired. [ ROBERT V  Jul 29, 2014 ]
The ability to retain steering wheel controls with aftermarket receiver harnesses will be determined by the receiver you are using and the vehicle you have. For full information on this type of integration (including the parts you will need) please contact an Advisor by phone (1-800-324-9695) or online chat. [ Greg  Jul 29, 2014 ]  Staff

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