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Metra 70-1784 Receiver Wiring Harness

Connect a new car stereo in select 1992-up vehicles

for matching vehicles with all car stereos $119+ for matching vehicles with all car stereos $119+
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  • Metra 70-1784 Receiver Wiring Harness

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Metra 70-1784 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.

Connections:

  • 12V constant power
  • 12V switched power
  • chassis ground
  • dimmer
  • left front speaker +/-
  • right front speaker +/-
  • left rear speaker +/-
  • right rear speaker +/-
See more info on this item

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 from the Crutchfield Labs (what are the Labs?)

Product Research
What's in the box?

Download owner's manual

  • Receiver wiring harness
  • Instructions

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.

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:

Wire Color Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
Black Chassis Ground
Orange/White Dimmer
Pink Amp Turn-On/Amp Booster (for select vehicles)
White/Red Not Used (tape off)
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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Metra 70-1784 Receiver Wiring Harness Reviews

Average Customer Review:

116 people say:

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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Anonymous, Schenectady, NY on Tuesday, August 19, 2014
Crutchfield Customer Review (What's this?)
 
Worked perfectly
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5 out of 5

Works well

Written By PM, Durham, NC on Friday, August 15, 2014
Crutchfield Customer Review (What's this?)
 
Used this to connect a new Sony head unit to replace a Monsoon one in a 2000 VW Golf. It took a while to connect all the wires, but once that was done it has worked fine. I like that it even has wires to dim the lights on the unit when you have the headlights on - wasn't expecting that.
Was this review helpful?    Yes | No
 
5 out of 5

Just what we needed!

Written By Lisa, Lebanon, OR on Thursday, July 24, 2014
Crutchfield Customer Review (What's this?)
 
They got us just what we needed!
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4 out of 5

Good fit

Written By Michael, Maine on Tuesday, July 22, 2014
Crutchfield Customer Review (What's this?)
 
Fit perfect only issue is with the Mercedes the red [ignition switch] and the yellow [constant 12V] are opposite, just realize this when you are connecting the plug to the radio. Works great!
Was this review helpful?    Yes | No
 
5 out of 5

Receiver wiring harness

Written By Chip, LaVale, MD on Wednesday, July 09, 2014
Crutchfield Customer Review (What's this?)
 
Straightforward, easy to use. Just match the wires and plug it in. It help make the install quick and easy.
Pros:
Made installation easy.
Cons:
None
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1 out of 5

Car Battery drained

Written By Matt, Cleveland, Ohio on Thursday, June 26, 2014
Crutchfield Customer Review (What's this?)
 
Will not work with Monsoon Radio. Amplifier in trunk will stay on and drain car battery overnight. Looked in VW Passat forums and this is a common problem. Only solution is to wire up a relay to switch 3 power wires to turn off with ignition switch. Locating the correct wires is hard.
Pros:
Radio and CD works
Cons:
Car battery will be dead in the morning
Crutchfield response on Tuesday, July 01, 2014
This is a known problem that occurs with some Monsoon systems. The amplifier in the Monsoon system doesn't have a dedicated turn-on/turn-off wire, so it depends on the specific amp as to whether this problem will occur. The solution is to install a relay to turn off the amp. Our Tech Support team is familiar with it and can advise customers on how to fix the problem.
1 out of 1 people found this helpful
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5 out of 5

Radio wiring harness

Written By Frosty, Young America, MN on Saturday, June 14, 2014
Crutchfield Customer Review (What's this?)
 
Perfect matchup from radio to factory wiring. It would be nice if crimp caps were included or at least suggested when ordering, I had difficulty locating crimp caps small enough.
Pros:
Makes wiring easy.
Cons:
Would like crimp caps included.
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5 out of 5

Does the job

Written By MS, Bellingham WA on Saturday, May 24, 2014
Crutchfield Customer Review (What's this?)
 
Simple product does the job, a little tricky figuring out the cable match ups but not hard. I soldered the harness to the decks cabling harness, took my time, not as easy as crimping but no worries
Pros:
Works
Cons:
None
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5 out of 5

perfect

Written By lizcast, merrillville in on Sunday, May 11, 2014
Crutchfield Customer Review (What's this?)
 
with this adapter you don't have to cut the factory wires, easy to install, color coded for a much faster installation. just plug in
Pros:
will save you time lots of time
Cons:
no cons
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5 out of 5

makes life easier

Written By Bob Blamo, Exeter, NH on Tuesday, April 29, 2014
Crutchfield Customer Review (What's this?)
 
The Metra harnesses are fairly well known for making life easier when installing a head unit so it was an obvious choice for my 2001 GTI. I soldered the wires to the Pioneer's harness and plugged it in. Nothing more.
Pros:
Makes it as easy as can be. Instructions are clear and simple
Cons:
None I can find
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5 out of 5

Woked perfectly

Written By iDubber EA, Tallahassee,Fl on Monday, April 28, 2014
Crutchfield Customer Review (What's this?)
 
Very easy install. The colors matched up as stated in the instructions. If you have a 2002 VW Jetta single din this is for you.
Pros:
Ease of use.
Cons:
None.
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5 out of 5

my harness for my range rover

Written By jose, los angeles ca. on Monday, April 21, 2014
Crutchfield Customer Review (What's this?)
 
is match perfect in my range rover 2002 i recomended made easy to install my new radio......thank you.
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5 out of 5

SO useful!

Written By N5JJR, Ponca City, OK on Sunday, April 13, 2014
Crutchfield Customer Review (What's this?)
 
Made the installation in our 05 New Beetle a breeze.
Pros:
Probably wouldn't have been able to install the Pioneer radio without it.
Cons:
The only con is not this device, but there isn't hardly any room for everything in the dash of the 05 Beetle. Keep working and you can get it all stuffed in there enough for the radio to slide in :-)
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5 out of 5

Works great

Written By Mus5083, Lacey,WA on Monday, April 07, 2014
Crutchfield Customer Review (What's this?)
 
Works exactly like it should no fuss
Pros:
Easy to use and dry straight forward
Cons:
None
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Terran, Johnsburg, IL on Tuesday, April 01, 2014
Crutchfield Customer Review (What's this?)
 
Easy
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5 out of 5

Metra 70-1784 Receiver Wire Harness Review

Written By Metra 70-1784 Receiver Wire Harness Review, Hartford, CT on Saturday, March 08, 2014
Crutchfield Customer Review (What's this?)
 
excellent
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5 out of 5

Beetle Wire harness

Written By Anonymous, Pompano Beach, Fla on Monday, March 03, 2014
Crutchfield Customer Review (What's this?)
 
Great piece of aftermarket equipment
Pros:
Easily installed, good directions included
Cons:
No Cons
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5 out of 5

exactly what I needed

Written By Angel, Maui,HI on Thursday, February 13, 2014
Crutchfield Customer Review (What's this?)
 
exactly what I needed to install my new CD/Ipod player/Radio in my 2002 VW Beetle
Pros:
works
Cons:
none
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5 out of 5

Metra 70-1784 Receiver Wire Harness

Written By BrianE, Wake Forest, NC on Thursday, February 13, 2014
Crutchfield Customer Review (What's this?)
 
easy to use and great instructions
Pros:
wires matched up quickly, easy instructions
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5 out of 5

Good buy.

Written By Vince, Cleveland, OH on Tuesday, February 04, 2014
Crutchfield Customer Review (What's this?)
 
Easy to use adapter. Came free with the purchase of the radio. Solid build quality.
Pros:
Easy to understand instructions.
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5 out of 5

Metra 70-1784 Receiver Wire Harness

Written By SteveB, Rhode Island on Monday, February 03, 2014
Crutchfield Customer Review (What's this?)
 
Made the installation of the radio extremely easy and did not have to cut any factory wires
Pros:
eliminated any cutting of vehicle factory wires
Was this review helpful?    Yes | No
 
5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Anonymous, Lafayette, LA on Saturday, January 25, 2014
Crutchfield Customer Review (What's this?)
 
Easiest install ever !!
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Marty, Norman, OK on Tuesday, January 21, 2014
Crutchfield Customer Review (What's this?)
 
Exactly what you'd expect in a factory harness adaptor. I used twist and solder with heat-shrink tubing to mate to the radio harness, and removed the extra wires with a pin. The instructions were clear and concise. The plastic and wires are good quality. Connector fit the factory harness well. There really isn't much else to say.
Pros:
Good fit Quality materials
Cons:
None
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5 out of 5

Metra 70-1784 Receiver Wire Harness

Written By CrevC, Las Vegas, NV on Monday, January 13, 2014
Crutchfield Customer Review (What's this?)
 
Works like a dream!! Easy Easy so glad!!
Pros:
Perfect.
Cons:
None.
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5 out of 5

PERFECT FIT FOR FOCUS WITH BLAPUM FACT RADIO

Written By Ed D, Milford, pA on Sunday, January 12, 2014
Crutchfield Customer Review (What's this?)
 
I knew that cruchfield would have the perfect fit to the application I was looking for and they sure had in stock and perfectly explained in detail to make sure it was perfect fit. 2004 focus had 3 different radio choices with different connectors
Pros:
PERFECT FIT TO THE TWO SPERERATE CONNECTORS WHICH WENT INTO BLUPUM FORD FACTOY RADIO WHICH WORKED PERFECT TO CONNECT NEW RADIO
Cons:
nONE PERFECT FIT
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5 out of 5

Works fine

Written By Skip M, Chicago on Monday, December 30, 2013
Crutchfield Customer Review (What's this?)
 
Works fine. Good heavy guage wires. And free!
Pros:
Plug n play
Cons:
none
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5 out of 5

Crutchfield is the best and only audio

Written By Tim, corpus christi texas on Wednesday, December 11, 2013
Crutchfield Customer Review (What's this?)
 
Fits perfectly no cutting into factory harness.
Pros:
Connects directly to factory harness!
Cons:
None
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5 out of 5

Pioneer

Written By aag007, Tucson, AZ on Saturday, September 14, 2013
Crutchfield Customer Review (What's this?)
 
I LIKE
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5 out of 5

Worked great for my VW Beetle

Written By Chachi007, Midwest, Il on Sunday, August 25, 2013
Crutchfield Customer Review (What's this?)
 
Once I figured out where the wires hooked up to & a quick call to Tech support it worked perfect. When i ordered my stuff they should've suggested the connectors you advertise. I would've bought some. 2001 VW New Beetle
Pros:
Colors match up pretty well
Cons:
Not for someone scared to try, but easy to learn.
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5 out of 5

Easy

Written By Joe B, NJ on Tuesday, August 20, 2013
Crutchfield Customer Review (What's this?)
 
Comes with extremely easy to understand instructions and a few extra wires for subs and such,. No problems installing.
Pros:
Everything
Cons:
Nothing
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4 out of 5

worked fine

Written By Bill, Pa on Tuesday, August 20, 2013
Crutchfield Customer Review (What's this?)
 
A little bulky but fit and worked just fine.
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Henley F, Knoxville TN on Friday, August 09, 2013
Crutchfield Customer Review (What's this?)
 
Absolutely Essential for changing your Head Unit on a Land Rover
Pros:
Stock Wires Snap Right In
Cons:
No Steering Wheel Control But My Unit Doesn't Have That Anyway
1 out of 1 people found this helpful
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5 out of 5

Metra 70-1784 Receiver Wire Harness

Written By oliver, concord,ca on Tuesday, July 30, 2013
Crutchfield Customer Review (What's this?)
 
the Metra 70-1784 Receiver Wire Harness it is a great product work great in my 1998 Mercedes Benz C class. Worked as advertised,easy to install.
Pros:
work great in my 1998 Mercedes Benz C class. Worked as advertised,easy to install
Cons:
none
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5 out of 5

Excellent harness for VW

Written By 1zapz, Pacific NW on Friday, July 26, 2013
Crutchfield Customer Review (What's this?)
 
Harness matched well with Sony equipment and VW Eurovan. I had to call Crutchfield to make certain of 2 wiring connections, but that was a simple matter - just cut them and tie them off!
Pros:
Matched up in wire colors.
Cons:
2 extra wires that had to be called about.
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5 out of 5

2004 VW Beetle

Written By Leo, Sterling, Va. on Thursday, July 18, 2013
Crutchfield Customer Review (What's this?)
 
Easy to use. Good price. Comes with instructions...Nice!
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4 out of 5

2006 Mercedes Sprinter

Written By TR, Portland, OR on Monday, July 15, 2013
Crutchfield Customer Review (What's this?)
 
The harness worked perfect. The direction for a Sprinter van said to swap the yellow and red wires and then run a wire from the battery for the constant power. I tested the vehicle wire harness and power was there I just had to swap the yellow and red wires and it worked perfect without having to run a wire direct to the battery.
Pros:
Ease of use and wiring
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Anonymous, Orlando, FL on Monday, June 17, 2013
Crutchfield Customer Review (What's this?)
 
Good
Pros:
Good
Cons:
None
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5 out of 5

made instal easy

Written By Jeremy H, Portland, OR on Thursday, June 06, 2013
Crutchfield Customer Review (What's this?)
 
easy to use, and I love that the new deck fades to off like the factory one did
Pros:
easy to use
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5 out of 5

Works as advertised

Written By Rick T., Pen Argyl, PA on Monday, April 29, 2013
Crutchfield Customer Review (What's this?)
 
Good product. Worked as advertised. Saved a ton of time on the install.
Pros:
Good quality and documentation.
Cons:
Nothing bad to say.
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5 out of 5

Free stuff is cool!

Written By Rob K., Kingsport, TN on Monday, April 15, 2013
Crutchfield Customer Review (What's this?)
 
I had a friend who bought the same receiver at a stereo shop and they charged her about 100 dollars for a wiring harness. Crutchfield's the only stereo shop I deal with.
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5 out of 5

Wire Harness

Written By John, Vermilion Ohio on Saturday, April 06, 2013
Crutchfield Customer Review (What's this?)
 
worked perfectly
Pros:
simple to install
Cons:
none
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5 out of 5

Ford Focus with factory Blaupunkt adapter

Written By Gene, Salem Oregon on Friday, January 25, 2013
Crutchfield Customer Review (What's this?)
 
This wiring adapter worked great for adapting my Ford Focus 2003 factory Blaupunkt unit to my Pioneer stereo. There were only two wires to switch and the instructions I got with my purchase it told me which wires and for which cars. I soldered this adapter to my plug for my Pioneer unit and then just plugged it into my cars harness.I then just plugged in my Pioneer unit and every thing works great. The Pioneer unit I have does not have any the auto volume control for vehicle speed like my Blaupunkt had, but if it did, you would need another adapter for this feature. I understand it also is available from Crutchfield.
Pros:
No need to cut up cars wiring harness. Easier to connect or solder wires at the table rather than in the dash. You can always easily plug the old stereo back into the car.
Cons:
None
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2 out of 5

Winnebago Rialta VW Eurovan Wire Harness Won't Work

Written By squagle, St. Louis, MO on Tuesday, January 22, 2013
Crutchfield Customer Review (What's this?)
 
The Winnebago Rialta is based off of the 2003 VW Eurovan but has a different harness then the one provided by Crutchfield. It looks like this is due to the different 12v setup of the motorhome (runs of the coach batteries instead of the car battery.) This adapter will not work in the Winnebago Rialta.
Cons:
Does not work in the 2003 Winnebago Rialta
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5 out of 5

Best costumer service system EVER

Written By Grizzle, MD on Saturday, January 19, 2013
Crutchfield Customer Review (What's this?)
 
I went to replace my stock head unit in my 2005 GTO only to find out that in order to do this I needed a Voltwagon wire harness. A friend lead me to crutchfield and I was having an issue finding a metra part number on the website so I gave them a call. I called as I was viewing their website and the representative told me to go to the bottom of the page and read her the number, I hit the refresh button and BOOM all three parts I needed for my car were right there on my screen. My mind was blown! This was the first time I swapped a head unit so I made some phone calls during the swap and they had an answer to every one of my many questions. Best customer service, hands down!
Pros:
Everything
Cons:
Can't think of one thing.
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5 out of 5

Excellent VW Beetle Harness

Written By 1trkpny, Salt Lake city, UT on Saturday, January 12, 2013
Crutchfield Customer Review (What's this?)
 
nice, heavy gauge wire. Matched the Pioneer stereo I put in color-for-color.
Cons:
Wiring block takes up a lot of space behind the head unit. There is a small hole toward the back of the opening where the bllock will be out of the way.
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5 out of 5

Wire Harness

Written By Anonymous, Birmingham, AL on Thursday, January 03, 2013
Crutchfield Customer Review (What's this?)
 
The crutchfield wiring harnesses always do the job.
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4 out of 5

Easy to use

Written By John_M, Austin, TX on Thursday, January 03, 2013
Crutchfield Customer Review (What's this?)
 
Thank you CrutchField for including this item with my deck. Made the installation a snap. I gave it a 4 as the directions could be a little clearer. A quick phone call to tech support solved my problem (pink Amp On wire connection was not clear, at least to me). Switching the Yellow and Red wires for my application was a bit unclear as well. Yes, switching the wires is the right thing to do, but the instructions define the wire connections as to which one goes to ignition and which one to constant 12V. Following that after testing with my multimeter leads to incorrect connection.
Pros:
Free with purchase. Easy to install.
Cons:
Directions a bit unclear for a total novice.
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5 out of 5

Wire Harness worked perfectly

Written By Mark, Moorestown, NJ on Monday, December 31, 2012
Crutchfield Customer Review (What's this?)
 
The wire harness was used on a 1998 Mercedes ML320. I am always a bit apprehensive about finding compatible aftermarket products for Mercedes because it seems there really aren't too many out there. But this wire harness was absolutely perfect. The instructions provided by Crutchfield provided easy-to-follow and detailed directions on how to correctly connect the wires in the harness to the wire harness of the radio I purchased (Sony MEX-BT3100P). The only flaw I found was that the directions incorrectly stated that the factory connector in the Mercedes needed to be cut in half in order to properly mate with the connector on the wire harness. I happily found that this wasn't necessary - perhaps the wire harness has been updated since the instructions were written. I was worried that the installation of my stereo would be complicated and take hours but it only took me an hour and a half including the time it took to solder the wires in the harness to the wires from the radio.
Pros:
Great instructions by Crutchfield made using this harness easy and fast!
Cons:
None
1 out of 1 people found this helpful
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5 out of 5

Jetta receiver wire harness

Written By BillW, West Central Ohio on Wednesday, December 12, 2012
Crutchfield Customer Review (What's this?)
 
Easy to match up and solder wires together.
Pros:
Exact fit. wire colors matched.
Cons:
Plug could be one piece, or marked as to the side of the one piece connector in the car.
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Anonymous, Indianapolis, IN on Tuesday, October 16, 2012
Crutchfield Customer Review (What's this?)
 
Made install easy!
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5 out of 5

awesome

Written By frank, omaha ne on Monday, July 16, 2012
Crutchfield Customer Review (What's this?)
 
The one I needed. A perfect fit. Easy to hookup.
Pros:
Colors were easy to match to the stereo.
Cons:
Nothing
1 out of 1 people found this helpful
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5 out of 5

Crutchfield wire harness

Written By Bruce, Mathews,VA on Sunday, June 24, 2012
Crutchfield Customer Review (What's this?)
 
The wire harnesses from Crutchfield never disappoint. They are one of the reasons I shop here. They make the job fun rather than painful, while maintaining your factory harness. If you still can't figure it out, Cruchfield support will blow you away with their knowledge. I bought a used car and a hacker had chewed up the factory harness. The Crutchfield tech told me what to look for and got me through it.
Pros:
If your vehicle has special wire requirements or differ from a normal install, they'll include specific instructions telling you exactly what to do.
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5 out of 5

Volkswagen Wire Harness

Written By GST, Carlsbad, CA on Thursday, June 14, 2012
Crutchfield Customer Review (What's this?)
 
I used this on my 1995 Mercedes to install a new Pioneer head unit. Made the installation neat and clean, leaving the factory harness intact.
Pros:
Makes installation easy and leaves factory wiring intact.
Cons:
None.
1 out of 1 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

Simple

Written By Joe P, Cleveland, OH on Thursday, June 07, 2012
Crutchfield Customer Review (What's this?)
 
I wouldn't normally use something like this as I prefer to directly attach the new harness bundled with the receiver to the car's existing wiring. It was so much nicer to be able to do the soldering outside of the dash and in doing so, installation was a breeze. I would definitely use a harness adapter like this again.
Pros:
Easy to use, permits soldering/ splicing to be done outside of the vehicle. Works with multiple makes/ models.
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5 out of 5

Necessity

Written By jay_r, Los Angeles, CA on Wednesday, June 06, 2012
Crutchfield Customer Review (What's this?)
 
Followed the instructions on connecting harness to new stereo wires, soldered them up and worked fine. I should have cut the wires shorter so it was not as bulky. I had to squeeze all the wires in to make the stereo fit.
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3 out of 5

Receiver Wire Harness

Written By bill, east mtns, nm on Monday, May 28, 2012
Crutchfield Customer Review (What's this?)
 
Bulky connector made it VERY difficult to get head unit in.
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5 out of 5

Perfect fit

Written By mark, Jamesport, NY on Monday, April 30, 2012
Crutchfield Customer Review (What's this?)
 
Replaced stock radio in sons ME/BE. Called Crutchfield. Sent out items needed for the harness. Had new radio working in one hour. Son was down the road showing off to his friends.Thanks Crutchfield!
Pros:
Paperwork well written, easy install. Pictures also helped.
Cons:
None
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3 out of 5

VW Wiring Kit Tight

Written By Munchiniwa, Orlando, FL on Friday, April 27, 2012
Crutchfield Customer Review (What's this?)
 
The kit fits but its not easy. You may have to break out the "adjustment tools" like a hacksaw, hammer, chisels, etc.
Pros:
Connects easily
Cons:
There is not enough space in the compartment for the large head. Its about 1/8" to 1/4" too thick. You CAN force it in but its scary. Feels like you are bending the radio to get it in.
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5 out of 5

Necessity

Written By Kmratliff29, Cincinnati on Thursday, April 05, 2012
Crutchfield Customer Review (What's this?)
 
It is a necessity
Pros:
Absolutely needed
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3 out of 5

VW Receiver Wire Harness

Written By Anonymous, Michigan on Wednesday, April 04, 2012
Crutchfield Customer Review (What's this?)
 
Receiver Wire Harness Review.
Cons:
The blue, 12 V wire for the radio antenna amplifier out of the radio needed to be connected to the Blue/White wire on the Kenwood radio. This information was not provided by Crtchfield installation guide or Kenwood manual.
3 out of 3 people found this helpful
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3 out of 5

Why does it not come with a ground cable?

Written By a50svespa, San Gabriel Valley, CA on Monday, April 02, 2012
Crutchfield Customer Review (What's this?)
 
was great for easy install but it did not come with a cable for the ground. I had to splice my factory harness for the ground. defeats the purpose for getting a harness. three stars just because it came free.
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1 out of 5

not for sprinter

Written By KSH, Kansas City on Friday, March 16, 2012
Crutchfield Customer Review (What's this?)
 
This item plugs into the harness for our 2010 Sprinter van, however the sprinter uses the CanBus system. if you use this, you will still have to run switched power and dash illumination. I ended up using an XSVI-1784-NAV to hook up our nav unit. if you don't have a nav unit, the XSVI-1784 will work as well for a little cheaper.
Pros:
will get your speakers hooked up as well as ground an constant power.
Cons:
will not provide switched power in a sprinter van.
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4 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Anonymous, danbury ct on Thursday, February 16, 2012
Crutchfield Customer Review (What's this?)
 
easy to assemble
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5 out of 5

Connector Adaptor

Written By Bill, Edgewood, Maryland on Saturday, February 11, 2012
Crutchfield Customer Review (What's this?)
 
This was real easy to use and the color code matched my stereo. It made installation much easier.
Pros:
Fites well and color code matched
Cons:
None
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3 out of 5

volkswagen wiring harness

Written By Sa, California on Thursday, February 09, 2012
Crutchfield Customer Review (What's this?)
 
I bought the harness to use on a 1999 Mercedes 320 ML. There was one wire that was not connected correctly. The blue, 12 V wire for the radio antenna amplifier out of the radio needed to be connected to the tan/light brown wire on the Merceds plug. Without 12 volrts to the antenna amp, I received no AM reception. I used a pair of needle nose pliers to move an unused wired over to reconfigure the plug and all was okay. Other than that, the plug is a wise thing to use and generally makes the installation slick. Perhaps the wrong plug adapter was sent to me, but I doubt it
1 out of 1 people found this helpful
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3 out of 5

Great. sort of

Written By Pat, Detroit, MI on Wednesday, February 01, 2012
Crutchfield Customer Review (What's this?)
 
Volkswage, I have a Ford... .
Pros:
It fit.
Cons:
I didn't have a Volkswagen. Guess it doesn't matter.
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5 out of 5

wire harness

Written By nightshifter999, kentucky on Tuesday, January 31, 2012
Crutchfield Customer Review (What's this?)
 
made this the easiest radio install ever. only place to buy a car stereo!
Pros:
easy.
Cons:
none.
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5 out of 5

Worked perfectly for my application

Written By Jeff L, Newton, MA on Monday, November 21, 2011
Crutchfield Customer Review (What's this?)
 
Read the instructions, solder or crimp your connections.

Plug it in and listen to tunes.
Pros:
Worked perfectly for my 2000 Saab 9-3
Cons:
Doesn't come with shrink-tube. Most home-installers would have a stock of shrink tubing. It'd be great if the kit included some.
2 out of 2 people found this helpful
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5 out of 5

Crutchfield connector makes install easy

Written By Anonymous, N California on Sunday, October 16, 2011
Crutchfield Customer Review (What's this?)
 
I will always buy from Crutchfield - the connector kit makes install much easier. Eliminates soldering inside the car, wire by wire. Saves hours of work. This is my 2nd install. I was skeptical if the connectors work; I mean, how can they test each and every one? But it does work. My previous install had differential inputs, different from typical, and they got the wiring correct.
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Bryan, Florida on Sunday, October 09, 2011
Crutchfield Customer Review (What's this?)
 
adapter worked great
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5 out of 5

Perfect

Written By Aovi, Alabama Coast on Thursday, October 06, 2011
Crutchfield Customer Review (What's this?)
 
The evening the stereo arrived I took the time to attach this properly.

The installation was very simple thanks to being able to simply remove the old stereo and plug the new one right in without fumbling with loose wires hanging out of a small hole in the dash.

This came free with my car stereo purchase from Crutchfield. Another reason to always shop here!
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3 out of 5

2000 Jetta with Monsoon

Written By Anonymous, Jacksonville, FL on Saturday, September 17, 2011
Crutchfield Customer Review (What's this?)
 
The harness fit perfect with only one problem. With the Monsoon system, my amp was drawing power from the battery when the car was off. There was nothing on the harness let alone instructions on what to do about this. Had to disconnect the amp and rewire the speakers to by pass the use of the amp. This was annoying and frustrating. I don't really blame the harness or crutchfield's instructions, but maybe add something on what to do about this. Overall the hardness fit and worked well minus this amp problem.
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Mark, Tampa on Wednesday, September 07, 2011
Crutchfield Customer Review (What's this?)
 
perfect fit
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5 out of 5

Just plug it in and it works

Written By Kevin P, Rancho Cucamonga on Tuesday, July 26, 2011
Crutchfield Customer Review (What's this?)
 
All of the factory wires are confusing. Just plug in the harness they give you and it just works. If you aren't sure they can email you the color codes on the factory wires to let you double check it. The help they gave me over the phone (even on a Sunday morning) was outstanding. For this alone I will always shop at Crutchfield first and recommend them!
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5 out of 5

2001 Passat Monsoon Harness

Written By Greg D., Rochester NY on Saturday, June 25, 2011
Crutchfield Customer Review (What's this?)
 
Fit perfectly, wires matched up color for color with JVC head unit.
1 out of 1 people found this helpful
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5 out of 5

Perfect

Written By Steve K, Branford, CT on Tuesday, April 19, 2011
Crutchfield Customer Review (What's this?)
 
This made the installation painless. I connected this to the (new) radio's
harness while watching TV (multi-tasking, why not?). It made the installation
quick, pain and frustration free.
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5 out of 5

Harness Adapter

Written By ScruddlyJr, Fort Collins, CO on Thursday, April 07, 2011
Crutchfield Customer Review (What's this?)
 
As usual with Crutchfield adapters, this was a perfect fit and simplified the wiring
and splicing effort.
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Anonymous, CT on Friday, March 25, 2011
Crutchfield Customer Review (What's this?)
 
Does the job perfectly! Much better than having to hack and splice wires
together still in the dashboard. Made installing my new HU a breeze and took
less than half an hour!
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5 out of 5

Works exactly as it should!

Written By dtsdig, Rochester, NY on Thursday, March 24, 2011
Crutchfield Customer Review (What's this?)
 
I installed this into my 1995 Mercedes E320 Wagon with the Active Bass factory
setup. I have spent days online looking for easy solutions that allow you to
install a new head unit and still utilize the factory amp that powers the
mid/bass speakers in the front doors. This is that product!!! I did swap the
red and yellow power wire positions at the connector so that the constant and
switched power works properly for my car as the included instructions said. I
also hooked up the amp turn-on wire from the new Alpine deck to the power
antenna wire on this harness because on my car the power antenna wire is also
the factory amp turn-on. The system works flawlessly and sounds a million times
better than the original with no wires having to cut. Thanks Crutchfield!
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By VW Chick, Charlotte, NC on Friday, March 18, 2011
Crutchfield Customer Review (What's this?)
 
Made installation a breeze.
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5 out of 5

Easy install in 2001 VW Jetta

Written By ThomasN, Houston, TX on Friday, March 04, 2011
 
The harness just simply works as advertised. Installed it in my 2001 VW Jetta that came
with a Monsoon sound system. Very easy to install because of the included Crutchfield
installation guide and the colors matched up with my Kenwood receiver cables. The
length of the harness cable and the cable from the receiver combined was a little long,
but it fits inside the dash okay. One can trim the cables a little shorter for easier
installation.
2 out of 2 people found this helpful
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4 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By James F., Georgia on Sunday, February 20, 2011
Crutchfield Customer Review (What's this?)
 
Needed help with one connection (not shown on paperwork). I called help line and had an
answer within a minute from a VERY knowledgable tech.
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Roger T, Concord, NC on Saturday, February 05, 2011
Crutchfield Customer Review (What's this?)
 
I used this harness in a 2011 Freightliner and it fits exactly. This can also be used in
other late model big rig trucks, Mack and International and possibly others. I love the
new sony GT550UI stereo.
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5 out of 5

Beetle harness

Written By Richard R, Jackson, MS on Friday, February 04, 2011
Crutchfield Customer Review (What's this?)
 
The harness worked beautifully in the Beetle. Although I know nothing about radios and found that I had a new radio with twelve wires and a harness with fifteen wires, I was able to quickly mate the two with a few calls to your excellent, knowledgable, and vey helpful technical staff. It was most pleasing to find that the radio wires color coding matched the color coding of the harness and I was told what to do about the extra wires. Good job Crutchfield.
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4 out of 5

Good, but may need a second harness for rear speakers

Written By JK, Seattle on Monday, January 31, 2011
Crutchfield Customer Review (What's this?)
 
The harness supported all of the usual connections including front speakers, but I needed
an additional harness to support my rear speakers which were not routed through this
harness
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5 out of 5

Volkswagen wire harness

Written By Jim, Palm Bay, FL on Thursday, January 20, 2011
Crutchfield Customer Review (What's this?)
 
Used this to connect my Sony to '94 MB C220 wiring harness. Perfect!
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5 out of 5

No complaints

Written By Yuri, Bellevue, WA on Thursday, December 02, 2010
Crutchfield Customer Review (What's this?)
 
This harness is the boss. A bit of soldering and some shrink wrap and I've created a factory-
looking harness for my new aftermarket stereo. Clear instructions. What else can you ask
for?
1 out of 1 people found this helpful
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4 out of 5

2006 GTO

Written By Tony B, Long Island on Monday, October 25, 2010
Crutchfield Customer Review (What's this?)
 
This harness works great. The only problem was the directions did not say to hook up
one of the wires that powers the antenna booster. But after a quick call it was an easy fix.
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Brian, Colonial Heights, VA on Thursday, September 09, 2010
Crutchfield Customer Review (What's this?)
 
Was exactly what was needed. Fit nicely and schematics were doable. Relatively painless operation.
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Todd, Ravensdale, WA on Friday, August 27, 2010
Crutchfield Customer Review (What's this?)
 
This harness made installing my new radio very simple.
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5 out of 5

2001 VW Jetta w/ Monsoon Sound System

Written By Matt J, Connecticut on Sunday, August 22, 2010
 
This adapter worked great when I replaced the head unit in a 2001 VW Jetta which
came with a factory equipped Monsoon Sound System. An Internet search prepared
me for all types of wiring problems when replacing the HU, but this wire harness
plus Crutchfield's included directions made everything go smoothly.]

The Monsoon Amplifier turns on/off as it is supposed to, works with the regular
line voltage from the HU, no problem with speakers.

The HU gets plenty of power from the car's wiring system (and doesn't need a
dedicated wiring connect to ground and an empty spot on the fuse panel).

Follow the directions closely and leave the two extra wires unconnected (but
wrapped in electrical tape) so there are no problems when the dealer uses the
car scanner computer.
6 out of 6 people found this helpful
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4 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Bill, Florence, MS on Thursday, August 19, 2010
 
Instructions were clear and easy to follow. I agree with others that you need
to shorten the leads as much as possible because there just isn't much room in
the dash of the New Beetle for all those wires! I spent the most time during
the entire installation process just trying to get all the wires into the dash
far enough to let the stereo slide in. But that was more the fault of VW design
of stereo compartment rather than the wire harness itself. The plug end is kind
of big and boxy, but I don't know what else they could have done other than have
two individual plugs instead of one big one. However, the wire harness came free
with the purchase of the Clarion CZ-500, so I guess I shouldn't complain too much!
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Anonymous, Minneapolis, MN on Saturday, March 13, 2010
Crutchfield Customer Review (What's this?)
 
I did not install my own stereo, but the place that did told me that it went in very easily, and that Crutchfield's install kits are THE BEST!
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5 out of 5

Does the job!!!

Written By DAVID, So Cal on Tuesday, January 19, 2010
Crutchfield Customer Review (What's this?)
 
Wiring diagram was clear and concise. Only recommendation is to shorten the wires as much as possible before soldering, as there wasn't much room for this harness in the compartment when trying to install radio.
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5 out of 5

Awesome

Written By Josh, Austin, TX on Sunday, September 13, 2009
Crutchfield Customer Review (What's this?)
 
This saved me sooo much time and money. It was included free with my new head unit. I've never installed my own stereos before but I did this time as this adapter relieved my fears of messing up my factory harness. Just sat down at my work bench with the old soldering gun and was done in about 20 minutes.
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1 out of 5

Lousy product

Written By Scott, Rapid City SD on Monday, August 24, 2009
Crutchfield Customer Review (What's this?)
 
Two of the speaker wires were missing from the harness so I had to jumper the leads direct. If I had time, I would have had a new one sent (a week long delay I'm sure) but I had to get the receiver in that night. Better quality control is needed!
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Tyler, Kentucky on Saturday, August 22, 2009
Crutchfield Customer Review (What's this?)
 
This harness was a huge timesaver. We used it initially by plugging it into the Jetta speaker harness (there are 2 radio harness connectors in the car, one for the speakers, and one for everything else). Then we used the supplied diagram and a DVM to verify the proper color wires were in fact, the right wires for each speaker.

Once that was done, we removed the harness, put it on the bench with the harness from the radio, and started wiring them together. The great thing was that our new Pioneer radio harness used the SAME colors for each speaker and function as did this harness. So in the end, we just matched colors on both this harness and the radio harness, and soldered them each together!

When we were done, we had a custom amalgamation of 2 harnesses, which fit between the radio and VW harness connectors. Take it back to the radio, plug it all together, and go. The instructions clearly label each wire, it's function, and include some extra instructions for certain car models, where particular wires have other functions.
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Ryan, Tampa, FL on Thursday, May 14, 2009
Crutchfield Customer Review (What's this?)
 
This is exactly what I needed/wanted to upgrade the OEM cassette stereo
with a CD receiver unit. Worked perfectly, made the change over very easy.
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4 out of 5

Good Fit

Written By Terry, Yukon, OK on Saturday, May 09, 2009
Crutchfield Customer Review (What's this?)
 
This wiring harness adapter was sent with my Alpine head unit for my Crossfire. Simply followed the instructions supplied, did all the soldering at the bench. Took only just a few minutes to hook into the cars harness and to slide the deck into the dash. Since I'm NOT a professional installer, this made the job a breeze, unlike the old days of being under a dash for hours.
Thanks Crutchfield!
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5 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Marcus, Santa Clarita, California on Tuesday, May 05, 2009
Crutchfield Customer Review (What's this?)
 
This is a good adapter. It's good quality and the two OEM plugs in my Mercedes-Benz CLK snapped right in. It's a perfect fit. The only suggestion I have is for the owner to use a volt meter to double check whether the red and yellow are truly constant 12V+ and switched 12V+.
4 out of 4 people found this helpful
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5 out of 5

Great fit

Written By Alejandro, Miami Lakes on Wednesday, April 22, 2009
Crutchfield Customer Review (What's this?)
 
No complaints and very satisfied. These guys study all cars and all is perfect with all working just great.
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2 out of 5

Metra 70-1784 Receiver Wiring Harness

Written By Palmtree907, Augusta, Ga on Sunday, March 29, 2009
 
For Porsche boxster. Make sure you specify which speaker set up you have. Wires in the plug were not inserted properly, so when I plugged it together, they pushed out. Had to reassemble the plug to make it work.
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5 out of 5

Works great with Passat!

Written By Bill T., Atlanta, Georgia on Monday, March 09, 2009
 
Worked like a champ. Even the wire color codes matched up.
1 out of 1 people found this helpful
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5 out of 5

Makes stereo installation a snap

Written By John, Atlanta GA on Sunday, March 01, 2009
Crutchfield Customer Review (What's this?)
 
The harness worked perfectly for my Saab 9-3. It made installation of the new stereo a piece of cake.
4 out of 4 people found this helpful
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5 out of 5

Perfect Fit

Written By Nicholas, Honolulu, HI on Friday, February 20, 2009
 
I have a 1997 Mercedes E-320 with factory Bose system. This adapter fit perfectly. The directions say that you will need to cut the factory plug in half to fit the adapter, but I did not find this necessary. The factory plug fit right into the adapter, no cutting necessary. Easy install!

The only downside is that you will lose the use of the trunk mounted CD changer, if you have one.
6 out of 6 people found this helpful
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5 out of 5

Perfect Fit

Written By Shane, Coldwater, MI on Monday, February 02, 2009
Crutchfield Customer Review (What's this?)