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Metra 70-7551 Receiver Wiring Harness

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

88 Reviews | 4 questions - 4 answers

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Item # 120707551

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Overview

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.

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.

Great product! Made installing aftermarket HU a breeze. My car has the factory Bose system, which makes normal installation a little more difficult. This was very easy to install and connect.

Anonymous, Atlanta, GA

What's in the Box:

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

Metra 70-7551 Receiver Wiring Harness Reviews

Average Customer Review(s):

(88 Reviews)
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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 & 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.

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.

Accessories
Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

I have seen where it suppose to fit the 2006 Nissan Xterra with R F radio system [ Jerry  Jun 20, 2017 ]
To assist in connecting the new unit [ Joe  May 18, 2017 ]
Included in installation package [ Chris  Apr 26, 2017 ]
Needed to adapt system to factory bose system [ michael  Apr 10, 2017 ]
Advisor recommendation [ claudia  Mar 26, 2017 ]
showed I needed it [ Lisa  Mar 25, 2017 ]
Designed for my specific vehicle and needed for installation. [ Kelly  Mar 17, 2017 ]
it was recommended for this oem system with factory amp [ jason  Jan 30, 2017 ]
Plug and play works very well. [ Samuel  Jan 04, 2017 ]
Part of my install package [ Shaun  Jan 03, 2017 ]
I wanted minimal modifications for me at install. A simple plug and play with existing OEM hardware. [ Gregory  Dec 15, 2016 ]
The Metra harnesses are a great way to install an aftermarket system without hacking up the factory wiring harness. [ WILLIAM  Dec 05, 2016 ]
Because I don't have to cut my factory wiring [ Yvonne  Dec 05, 2016 ]
This harness is used to when you have a BOSE system and installing and aftermarket unit. [ CARL  Nov 26, 2016 ]
Easier installation [ Eli  Nov 26, 2016 ]
Had Rockford Fosgate system in truck. [ Daniel  Nov 14, 2016 ]
Wanted the right tool for the job and I trust Crutchfield to deliver quality. [ Jack  Nov 08, 2016 ]
You said it fits my car [ Austin  Nov 06, 2016 ]
No cutting involved makes life easier and allows factory unit go back in if you wish easy [ KEVIN  Oct 17, 2016 ]
It was a recommendation from online purchase [ T  Sep 01, 2016 ]
Advisor Carson recommended Carson's Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=199 [ Robert  Jun 17, 2016 ]
easy install I hope [ Ric  Jun 05, 2016 ]
packaged by crutchfield [ Terry  Apr 12, 2016 ]
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 ]
Suggested by Crutchfield, for whom I trust, as required installation equipment. [ TIM  Mar 15, 2016 ]
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 ]
Needed for installing. [ Jeffrey  Mar 09, 2016 ]
It made it simple to connect to my vehicle's wiring harness. [ Michael  Mar 01, 2016 ]
makes swapping easy [ Sean  Feb 27, 2016 ]
Required for install. [ kyle  Feb 24, 2016 ]
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 ]
I chose this item in order to make the installation of my stereo "clean" and professional. [ Thomas  Dec 16, 2015 ]
Needed to install into my vehicle. A national electronics chain store quoted me $150 for this part [ Michael  Dec 13, 2015 ]
The site told us we needed it. [ Richard  Dec 13, 2015 ]

4 questions already asked

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
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
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
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
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