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Metra 70-1721 Receiver Wiring Harness Connect a new car stereo in select 1998-2013 Honda, Acura, and Suzuki vehicles

Item # 120701721

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

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

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12 questions - 18 answers

Item # 120701721

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$11.99

About the Metra 70-1721 Receiver Wiring Harness

Metra 70-1721 Receiver Wiring Harness

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

Metra 70-1721 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.

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What's in the box:

MFR #70-1721

Customer reviews for Metra 70-1721 Receiver Wiring Harness

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More details on the Metra 70-1721 Receiver Wiring Harness

Stacey B.

Product Research

Features

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 and sold separately.

Wire Code Chart:

Power/Front Speaker Harness

Wire Color Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
Black Chassis Ground
Orange Illumination
Empty (none)
Blue Power Antenna
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.

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Customer Q&A

12 questions already asked

Q
Will this fit my 2002 Acura rsx that comes with the bose system?
anthony  Nov 06, 2021
1 answer
A
For additional details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
kenneth  Nov 08, 2021 (Staff)
Q
I bought the Metra 70-1721 harness that is supposed to fit my 2008 Ridgeline RTS. The new head unit has a blue wire with white stripe. The Metra harness doesn't have a blue with white stripe wire. Where does this wire connect to?
michael  Jul 05, 2021
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. 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.
kristina  Jul 06, 2021 (Staff)
Q
What gauge of wire is this so we know what connectors to buy?
david  Dec 24, 2020
2 answers
A
Thank you for inquiring about the wiring size regarding the Metra 70-1721 receiver wiring harness. Purchasing butt connectors in the 18 to 22 gauge wire size should serve you well. The other option is to solder each wire individually. If you choose that particular route make sure to utilize heat shrink tubing in order to protect from potential electrical short circuits. You can be confident that Crutchfield will be able to provide expert advice whenever you need it.
david  Dec 25, 2020
A
18 gauge... the red butt connectors
craig  Dec 25, 2020
Q
If my car comes with a factory amplifier, will this bypass it or connect to it?
aaron  May 28, 2019
1 answer
A
This harness is probably intended to bypass a factory amp. What is the exact year, make and model of the vehicle? I can check our research file and tell you exactly what you'll need.
casey  Jun 09, 2019 (Staff)
Q
will I be able to use the subwoofer on my 2005 pilot with the JVC kw-v250b ?. I cant find the wire for it on the new harness. Thanks,Jerry
jerry in the desert  Jan 06, 2019
1 answer
A
We don't have a way to make the factory subwoofer continue to work once an aftermarket radio is installed into your Pilot My Bio: https://www.crutchfield.com/bio/Paul
jason  Jan 14, 2019 (Staff)
Q
Can this harness be used on Suzuki xl7 grand vitara 2006 v6?
alvin  Aug 12, 2018
1 answer
A
It is a recommended harness for the 2006 Grand Vitara, yes.
ryan  Aug 16, 2018 (Staff)
Q
this does not appear to match the factory harness for a 2005 honda crv. factory harness has pins 2, 3, 5, 6, 7, 8, 9, 10, 15, 16, 17, 18, 19, 20 used which other harness do i need?
rich  May 23, 2017
1 answer
A
This is the only harness listed for your vehicle unless you are using the optional Crux wiring interface listed below to retain steering wheel controls: https://www.crutchfield.com/p_249HN62D/Crux-SWRHN-62D-Wiring-Interface.html?search=249hn62d&skipvs=T For additional details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and see what fits and what you will need for an installation in your vehicle.
kenneth  May 24, 2017 (Staff)
Q
Does this harness fit a 1998 Honda Accord ex 4 cylinder sedan that have factory front tweeters, door speakers, and rear deck speakers?
craig  May 08, 2017
1 answer
A
For additional details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
kenneth  May 08, 2017 (Staff)
Q
I bought a pioneer deh x4900bt but where do I connect the (blue wire) power antenna to ?
paul  Feb 22, 2017
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the connections 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: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/.
kenneth  Feb 22, 2017 (Staff)
Q
2002 honda accord ex radio am fm cassette built-in 6 cd changer anti theft volume and station steering wheel controls existing connector is 20 pin with 15 pins occupied . Most of these connectors are 20 pins with only 12 pins occupied. How does this harness work without modifications?... I don't see how they can.
lazetar  May 18, 2016
1 answer
A
Thanks for your question. This is the correct harness in all 2002 Honda Accord Models. There is a separate harness that retains steering wheel controls and is wired in conjunction with this harness. If you have further questions you can check http://www.crutchfield.com/car/carselector.aspx and see the options, or contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on how everything connects and what you will need for an installation in your vehicle.
kenneth  May 18, 2016 (Staff)
Q
My civic has the anti theft system built into its stock CD player/stereo. I was told I needed a Y harness so that I could keep the anti theft working. Is this correct? Or will this harness work as well?
taylor  May 22, 2014
3 answers
A
you do need the y harness . you have to keep the old radio in the car. sometime you can put it low under the dash all the way forward of the center console. Had a 98 civic and had to do the same thing.
don  Jul 16, 2016
A
yes
robert  May 27, 2014
A
The hardness provided by Crutchfield works just find. No problem on my Accord.
salomon  May 23, 2014
Q
Is this meant for the OEM harness to plug in to the harness side of this plug, and then the color wires need to get connected to the plug that comes with the new stereo? How difficult is this to do if that is the case. Do you simply use wire nuts to keep them together?
randall  Dec 26, 2013
4 answers
A
Wiring harnesses are indeed meant to plug into your factory wiring. then you would connect those to the harness that comes off your head unit. wire nuts are typically too large to fit behind a deck, especially a bunch. they have barrel crimpers you can use though. You can prob get them here at Crutchfield or local store or something like that.
eric t  Dec 28, 2013
A
The Crutchfield Wiring harness does plug right into the OEM connector. However, matching the wiring may take some close attention depending on the complexity of the OEM receiver you are replacing. I would also suggest to solder the wiring connections and a heat shrink protector or some other mechanical means of connecting the wires as wire nuts may loosen after sometime.
dennis  Dec 27, 2013
A
This is correct. You can solder or use wire nuts. I have used wire nuts on all of the ones that I have done and haven't had a problem. Go for it.
nicholas n  Dec 27, 2013
A
Yes you connect this harness to the OEM harness and then splice,soder,crimp or twist and apply electric tape (whatever accommodates you) together by matching the colors and it should come with a pamphlet stating what each color represents. From a scale 1-10 of difficulty it is like a 2; If u have any trouble u can Youtube it.
jonathan  Dec 27, 2013
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