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Metra 70-7551 Receiver Wiring Harness

Connect a new car stereo in select 1995-up Nissan and Infiniti vehicles

Item # 120707551

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

Read more from Crutchfield writer, Charlie P.

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In Stock
$16.99

About the Metra 70-7551 Receiver Wiring Harness

Metra 70-7551 Receiver Wiring Harness

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

Metra 70-7551 Receiver Wiring Harness

Installation Note: This harness uses your factory amplifier; your new stereo must have two pairs of preamp outputs to connect this 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.

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What's in the box:

  • 7.5" Power/ground harness
  • 7.75" RCA harness

Customer reviews

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Metra 70-7551 Receiver Wiring Harness Reviews

Average Customer Review(s):

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Cons:

Crutchfield response

More details on the Metra 70-7551 Receiver Wiring Harness

Product Research

Features

Metra Wiring Harness: Metra 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 Metra 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 Metra 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 Metra 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/Front Speaker Harness)

Wire Color Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
Black Chassis Ground
Blue Power Antenna
Orange Illumination
White RCA Left Front Channel
Gray RCA Right Front Channel

(Rear Speaker Harness)

Wire Color Function
Black/White Amplifier Ground
Blue/White Amp Turn-On
Green RCA Left Rear Channel
Violet RCA Right Rear Channel

Factory Amp Note: This harness includes RCA connections (instead of speaker wire leads) to connect the aftermarket head unit's preamp outputs to your vehicle's factory amp. Your aftermarket head unit must be equipped with front & rear preamp outputs.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
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Needed [ Jose  Mar 07, 2019 ]
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Part of Kit [ S  Feb 18, 2019 ]
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It will make installation a lot easier. [ KEELEY  Jan 31, 2019 ]
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I needed it. [ Chandler  Jan 15, 2019 ]
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IT's a must if you are going to change your OEM Radio to an aftermarket in a NIssan Murano (mine is 2005) [ Ernesto  Dec 19, 2018 ]
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recommended by the site [ Thomas  Dec 06, 2018 ]
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Always a good experience with Crutchfield products. [ Karl  Oct 27, 2018 ]
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Came free with the head unit [ Stephen  Oct 22, 2018 ]
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So I can make sure I have everything I need [ Shontane  Oct 19, 2018 ]
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I am attempting a first time do it yourself install. Crutchfield appealed to me because of the amount of research they do for every vehicle and the instructions they provide on how to install a product. Because of this, I trust their judgement as to what parts will be needed for the best fit. [ Harold  Oct 13, 2018 ]
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Recommended by Crutchfield [ Mark  Aug 02, 2018 ]
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Makes taking my expensive new car stereo with him easy as I only have to unplug and go. [ John  Jul 24, 2018 ]
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Easy and quick assembly [ Peter  Jun 08, 2018 ]
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The description states it fits my vehicle [ Jdilly  May 30, 2018 ]
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Will be needed to connect radio [ Dwayne  Apr 25, 2018 ]
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Ease of installation [ Carlos  Apr 10, 2018 ]
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Only one that is available for the murano [ Devin  Mar 29, 2018 ]
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It was recommended [ Christian  Mar 22, 2018 ]
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Because I need it to install an aftermarket radio duh! [ Daryl  Mar 10, 2018 ]
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I chose this wiring set because I'm getting this hole set up for my wife and she likes using her controls on the steering wheel which is definetly safer for when she is driving my kids around. [ Thomas  Mar 07, 2018 ]
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It was recommended by Crutchfield [ joresito  Feb 15, 2018 ]
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It was recommended. [ Sean  Feb 13, 2018 ]
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After contacting crutchfield and explaining what type of radio I had and it's new replacement they were extremely helpful and recommended this wiring harness. I haven't installed it yet but I am truly hoping that it will work just fine. Thank you. [ Abraham  Jan 30, 2018 ]
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Ease of install [ stewart  Jan 27, 2018 ]
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you proposed them to me [ Alexandre  Dec 13, 2017 ]
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Easiest way to connect the new with the old! [ Robert  Dec 10, 2017 ]
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Part of the installation kit. [ Paul  Dec 01, 2017 ]
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For a cleaner installation. [ MARIO  Nov 24, 2017 ]
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It was recommended by crutchfield [ Daniel  Nov 20, 2017 ]
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I'm installing an after market stereo, and I didn't want to splice my factory wire harness [ Josh  Nov 09, 2017 ]
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I need it for my car and stereo choice. [ Reilly  Oct 28, 2017 ]
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Always purchase the additional wiring harness for your vehicle. This one also retains the factory amp. [ Thomas  Oct 14, 2017 ]
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Needed for proper installation [ Jefferson  Oct 08, 2017 ]
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Don't like the ones I have [ Dennis  Aug 13, 2017 ]
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Metra products make installation easy and fast, along with giving a polished professional appearance. [ Keith  Aug 12, 2017 ]
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Items were chosen based on what the site recommended; I've always trusted the Crutchfield team for their overall knowledge of products and professionalism. The technical assistance is worth the purchase in itself as you are taken step by step through the process which is personally fun for me. [ Alexander  Jul 28, 2017 ]
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come with kit [ Saengtawan  Jul 20, 2017 ]
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It was needed to retain the factory Bose amp. [ Rodney  Jul 13, 2017 ]
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I have seen where it suppose to fit the 2006 Nissan Xterra with R F radio system [ Jerry  Jun 20, 2017 ]
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To assist in connecting the new unit [ Joe  May 18, 2017 ]
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Included in installation package [ Chris  Apr 26, 2017 ]
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Needed to adapt system to factory bose system [ michael  Apr 10, 2017 ]
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Advisor recommendation [ claudia  Mar 26, 2017 ]
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showed I needed it [ Lisa  Mar 25, 2017 ]
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Designed for my specific vehicle and needed for installation. [ Kelly  Mar 17, 2017 ]
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it was recommended for this oem system with factory amp [ Jason  Jan 30, 2017 ]
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Plug and play works very well. [ Samuel  Jan 04, 2017 ]
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Part of my install package [ Shaun  Jan 03, 2017 ]
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I wanted minimal modifications for me at install. A simple plug and play with existing OEM hardware. [ Gregory  Dec 15, 2016 ]
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The Metra harnesses are a great way to install an aftermarket system without hacking up the factory wiring harness. [ kirk35  Dec 05, 2016 ]
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Because I don't have to cut my factory wiring [ Yvonne  Dec 05, 2016 ]
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This harness is used to when you have a BOSE system and installing and aftermarket unit. [ CARL  Nov 26, 2016 ]
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Easier installation [ Eli  Nov 26, 2016 ]
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Had Rockford Fosgate system in truck. [ Daniel  Nov 14, 2016 ]
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Wanted the right tool for the job and I trust Crutchfield to deliver quality. [ Jack  Nov 08, 2016 ]
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You said it fits my car [ Austin  Nov 06, 2016 ]
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No cutting involved makes life easier and allows factory unit go back in if you wish easy [ KEVIN  Oct 17, 2016 ]
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It was a recommendation from online purchase [ T  Sep 01, 2016 ]
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Advisor Carson recommended Carson's Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=199 [ Robert  Jun 17, 2016 ]
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easy install I hope [ Ric  Jun 05, 2016 ]
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packaged by crutchfield [ Terry  Apr 12, 2016 ]
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installed a new stereo in my 350 Z and there was no way to hook up the sub, an advisor helped me find a harness,don't remember his name, cause it was 2 weeks ago,i screwed up ordering it and just redid it. i didn't even buy the stereo from them and he was still a great help, best buy was no help, and the stereo is the same price at Crutchfield, I'll stick with Crutchfield from now on. Mic [ Mic  Mar 27, 2016 ]
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Suggested by Crutchfield, for whom I trust, as required installation equipment. [ Tim  Mar 15, 2016 ]
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I chose these items because Chuck from Crutchfield recommended ALL items. Thank You Chuck for all your assistance Chuck's Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=58 [ Michael  Mar 10, 2016 ]
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Needed for installing. [ Jeffrey  Mar 09, 2016 ]
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It made it simple to connect to my vehicle's wiring harness. [ Michael  Mar 01, 2016 ]
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makes swapping easy [ Sean  Feb 27, 2016 ]
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Required for install. [ kyle  Feb 24, 2016 ]
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price was a concern but so was value. I liked that the item showed it was a popular buy and the Crutchfield people included what wwas needed for a proper install. ANxious to get it. [ Steve  Dec 29, 2015 ]
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I chose this item in order to make the installation of my stereo "clean" and professional. [ Thomas  Dec 16, 2015 ]
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Needed to install into my vehicle. A national electronics chain store quoted me $150 for this part [ Michael  Dec 13, 2015 ]
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The site told us we needed it. [ Richard  Dec 13, 2015 ]
SHOW MORESHOW LESS

6 questions already asked

Q
The factory indash Bose radio unit w 6-CD changer in the 2003 Maxima is DOA. Will this harness connect to the factory speaker amplifier, which is presumably still okay?
[ larry  Jun 29, 2018 ]
2 answers
A
Larry, I purchased this harness to replace the bose radio unit w 6-CD changer in my 2006 Maxima. I had no problems connecting. As long as the connection didn't change between 2003 and 2006, you should be fine. Hope it goes well for you.
[ Kurt  Jun 30, 2018 ]
A
It worked for a factory amp on a 2003 Xterra.
[ Joseph  Jun 29, 2018 ]
Q
I have a 2004 Sentra with the Rockford Fosgate system. It says this will not fit my car but I've heard otherwise. What is correct in this situation? Do I need a special reciever?
[ Dylan  Mar 24, 2016 ]
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.
[ Kenny  Mar 25, 2016 ]  Staff
Q
Will this work so the sound plays thru the speakers from my factory nav system in my 350Z Bose with nav system?
[ Dale  Nov 08, 2015 ]
1 answer
A
This harness includes RCA connections (instead of speaker wire leads) to connect your aftermarket head unit's preamp outputs to select 1995-up Nissan and Infiniti vehicles' factory amp. In order to find out if it would work with your 350Z, you can enter the year and version of your vehicle on our website here: http://www.crutchfield.com/car/carselector.aspx?lp=%2fCar%2foutfitmycar%2fcar.aspx You can also contact one of our Sales Advisors for further help: http://www.crutchfield.com/support/ContactUs.aspx
[ Larry  Nov 12, 2015 ]  Staff
Q
I have a 2007 Xterra w/Fosgate System. There are only 2 sets of RCA's on this harness, will I need 3 to use the factory amp to push the Fronts, Rears and Sub?
[ Daddy  Aug 15, 2015 ]
1 answer
A
For 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.
[ Krissy  Aug 17, 2015 ]  Staff
Q
Does this work in a 2005 Titan with Fosgate and Navigation? Did a single or double Din DVD Reciever fit? Was there a lot of mofifications to be done to install the stereo and wire harness?
[ Bill  Aug 09, 2014 ]
1 answer
A
For 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.
[ Krissy  Aug 11, 2014 ]  Staff
SHOW MORESHOW LESS

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