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Metra 70-1784 Radio Wiring Harness for Audi 88-99/Volkswagen 80-Up

4.6 4.6 out of 5 stars 1,505 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Automotive Replacement Electrical Wiring Harnesses by Metra
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Wiring Harness
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Purchase options and add-ons

Brand Metra
Material Polyvinyl Chloride (PVC)
Item dimensions L x W x H 4 x 0.5 x 3 inches

About this item

  • Plugs into car harness
  • Power/4 Speaker
  • 16-Pin plug
  • No cutting of factory wiring needed
  • For 1988+ VW
  • For 1988+ VW
› See more product details

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Metra 70-1784 Radio Wiring Harness for Audi 88-99/Volkswagen 80-Up
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Metra 95-9012 Double DIN Installation Dash Kit for Select 1999-2006 Volkswagen Golf, GTI, Jetta, and Passat
$14.20
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Metra 40-EU10 Antenna to Radio Adapter Cable for Select 2002-Up BMW/Volkswagen Vehicles,Black
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Metra 70-1784 Radio Wiring Harness for Audi 88-99/Volkswagen 80-Up

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 4 x 0.5 x 3 inches; 1.45 ounces
  • Item model number ‏ : ‎ 70-1784
  • Date First Available ‏ : ‎ November 26, 2006
  • Manufacturer ‏ : ‎ METRA Ltd
  • ASIN ‏ : ‎ B0002BEQKM
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.6 4.6 out of 5 stars 1,505 ratings

Product Description

HARNESS FITS AUDI 88-99/VW 80- 0

Top Brand: Metra

Highly Rated
100K+ customers rate items from this brand highly
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From the manufacturer

About Us

We at Metra always strive to listen to our customers. You have told us to do a better job at telling the Metra story. For over 70 years, Metra has maintained its cutting edge by paying attention to our marketplace and innovating products to fit the needs of the installer. We are the "Installer's Choice" because we are installers. Metra - offering the best in dash kits and aftermarket car audio installation accessories.

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Metra 70-1784 Radio Wiring Harness for Audi 88-99/Volkswagen 80-Up
Metra 70-1784 Radio Wiring Harness for Audi 88-99/Volkswagen 80-Up
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Price$6.63$12.89$12.50$16.99$12.99-49% $5.98
List: $11.76
Delivery
Get it as soon as Sunday, May 12
Get it as soon as Sunday, May 12
Get it as soon as Tuesday, May 14
Get it as soon as Sunday, May 12
Get it as soon as Monday, May 13
Get it as soon as Sunday, May 12
Customer Ratings
4.64.6 out of 5 stars1,505
4.64.6 out of 5 stars323
4.64.6 out of 5 stars64
4.64.6 out of 5 stars238
3.93.9 out of 5 stars33
4.64.6 out of 5 stars71
Value for money
4.6
4.0
3.8
4.5
—
5.0
Easy to install
4.4
3.8
3.5
4.4
—
4.5
Sold By
Amazon.com
RED WOLF
Dudu direct US
RED WOLF
Uneeksupplies⭐Authorized⭐
Uneeksupplies⭐Authorized⭐
material
Polyvinyl Chloride (PVC)
Acrylonitrile Butadiene Styrene
Copper
Copper, Polyvinyl Chloride (PVC)
Plastic
Plastic

Looking for specific info?

Customer reviews

4.6 out of 5 stars
4.6 out of 5
1,505 global ratings

Customers say

Customers like the performance, ease of installation, value, and quality of the adapter. For example, they mention it works well, it's easy to interface with the wiring, and it'll work with any universal stereo. That said, opinions are mixed on fit and wiring.

AI-generated from the text of customer reviews

82 customers mention76 positive6 negative

Customers are satisfied with the performance of the cable assembly. They mention that it works well, is easy to use, and is helpful for VW/Audi/Porsche vehicles. Some say that it's easy to install and works perfectly.

"Used this to install an aftermarket radio in a 2011 W900 and it worked great! Plug and play" Read more

"...Overall, worked great, fit perfectly, snapped on as it should...." Read more

"Well made and inexpensive, this harness is very helpful for VW/Audi/Porsche vehicles for which it fits...." Read more

"Worked great for stereo on a W210 '98 Mercedes E320 WITHOUT the Bose system...." Read more

55 customers mention52 positive3 negative

Customers find the installation process of the cable assembly to be easy. They mention that the harness connector makes it simple to install a universal stereo. They also say the wires have writing on them to label what they are. They say the instructions are clear and the install will go smooth.

"The wires were clearly labeled and easy to interface with the wiring for the new radio. Plugged in perfectly to the factory harness in the vehicle." Read more

"This harness was very easy to connect and it fit my factory wiring on a Massey Ferguson 4700 tractor...." Read more

"Perfect for the T1N. Wires up with ease and installs well." Read more

"...Overall, worked great, fit perfectly, snapped on as it should...." Read more

33 customers mention33 positive0 negative

Customers are satisfied with the quality of the adapter. They mention that it is a high-quality product, the wires and plastic harness seem of decent quality, and the connector is good quality. Some say that the adaptor is well made and reliable. Overall, customers are happy with the product's quality and recommend it to others.

"Nice plug. Wire coloring matched perfectly...." Read more

"...It wasn't a simple plug n' play install. It is made well, though, and ultimately did save a TON of time as opposed to cutting all the wires and..." Read more

"Good quality, nice clear colors and nice solid wires. Worked on my 2002 Cabrio but the speakers were flipped. Left became right...." Read more

"...Other than that it is a great connector that make installing an after market radio a snap." Read more

17 customers mention17 positive0 negative

Customers appreciate the value of the cable assembly. They mention it works great and is a great buy.

"...very good value ..." Read more

"Well made and inexpensive, this harness is very helpful for VW/Audi/Porsche vehicles for which it fits...." Read more

"...semi made the task soooooo much easier fast delivery great price worked perfect a MUST have if your changing your stereo head unit 5 ⭐️‘S all the way!" Read more

"...CHEAPEST OPTION ON THE MARKET...." Read more

11 customers mention11 positive0 negative

Customers find the labeling of the cable assembly easy to use. They mention that the colors are marked well on the packaging and wires to make connecting simple. They also say that the wires are clearly labeled and indicate what each wire is for. Customers also mention that instructions are provided on the package.

"The wires were clearly labeled and easy to interface with the wiring for the new radio. Plugged in perfectly to the factory harness in the vehicle." Read more

"Nice plug. Wire coloring matched perfectly...." Read more

"All color coded, easy to install, but for this car the wires are switched connect red to yellow and yellow to red for correct connection...." Read more

"Good quality, nice clear colors and nice solid wires. Worked on my 2002 Cabrio but the speakers were flipped. Left became right...." Read more

65 customers mention44 positive21 negative

Customers are mixed about the fit of the cable assembly. Some mention that it fits perfectly, while others say that it didn't fit their Audi A4, Beetle, or 2006 Golf City Mk4. The connector is too big spaced and didn''t even fit the car's wiring harness.

"This harness was very easy to connect and it fit my factory wiring on a Massey Ferguson 4700 tractor...." Read more

"...Overall, worked great, fit perfectly, snapped on as it should...." Read more

"Only install trouble is the lack of room in the beetle dash. Trying to get the radio in on top of the wires is tough...." Read more

"...Perfect fit for the application.Didn’t use the Orange/Blue/dimmer wire...." Read more

38 customers mention22 positive16 negative

Customers have mixed opinions about the wiring of the cable assembly. Some say that it allows them to connect the wires ahead of time, making the installation process simpler. They say that the harness connects very easily to the factory wiring and makes it simple to get the power for the new stereo. However, other customers say that they received the completely wrong wiring harness for their vehicle. They mention that the blue and white wire was missing and that the connector was not the right one for their VW GTI 2003.

"...Plugged in perfectly to the factory harness in the vehicle." Read more

"...You have to splice the ACC power to get it to power on. This is necessary because there is no ACC power wire in the harness to begin with...." Read more

"...Oh well. It plugged in just fine. I did notice it never saved my radio stations or clock settings after install...." Read more

"...switched power wires, red and yellow, are reversed and required me to switch the wires...." Read more

Worked great for upgrading my Lotus Elise's head unit
5 Stars
Worked great for upgrading my Lotus Elise's head unit
Worked great for upgrading my Lotus Elise's head unit. I did have to swap the power and switched wires to make all the colors match my Pioneer (a nit-picky change - it would work without swapping them). It was pretty easy using a jewelers small flathead screwdriver to push the pins out of the connector and replace them in the correct slot. I wrote a guide if that helps: google search for "howtune lotus head unit".Overall, worked great, fit perfectly, snapped on as it should. The gauge of the wires used in this adapter are significantly bigger then those that come with the aftermarket head unit, so no worries there. Be sure to solder them up for the best results!
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Top reviews from the United States

Robert C. Springmann
5.0 out of 5 stars Works perfectly
Reviewed in the United States on April 1, 2024
Style: Wiring HarnessProduct Packaging: Standard PackagingVerified Purchase
The wires were clearly labeled and easy to interface with the wiring for the new radio. Plugged in perfectly to the factory harness in the vehicle.
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Kindle Customer
5.0 out of 5 stars Fits my tractor harness perfectly.
Reviewed in the United States on April 19, 2024
Style: Wiring HarnessProduct Packaging: Standard PackagingVerified Purchase
This harness was very easy to connect and it fit my factory wiring on a Massey Ferguson 4700 tractor. It made the installation of my radio very quick.
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Ethan Belasic
5.0 out of 5 stars Worked great in Kenworth
Reviewed in the United States on August 11, 2023
Style: Wiring HarnessProduct Packaging: Standard PackagingVerified Purchase
Used this to install an aftermarket radio in a 2011 W900 and it worked great! Plug and play
One person found this helpful
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Awesage
5.0 out of 5 stars Makes the install SO much easier
Reviewed in the United States on July 8, 2023
Style: Wiring HarnessProduct Packaging: Standard PackagingVerified Purchase
Nice plug. Wire coloring matched perfectly.

You can connect everything on the bench and the just hop in the car, connect a couple of plugs, plug in the antenna and slide in your head unit.

Easy.
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Ty
4.0 out of 5 stars Works for the 2003 C240 with a few changes!
Reviewed in the United States on September 5, 2017
Style: Wiring HarnessProduct Packaging: Standard PackagingVerified Purchase
This is what another popular car audio website lists as the harness for a 2003 Mercedes C240, but Amazon says that it will not fit the C240. It will fit, but there are a few things to note:

1) The constant battery power (yellow) and 12V switched battery power (red) wires in this harness are actually switched for this car. I was connecting a Pioneer FH-X720BT, and the wires coming out of that stereo matched this harness, and I presume that most recent aftermarket radios would match as well. If your colors match, then you'll want to connect the yellow wire out of the back of the stereo to the RED wire in this harness. The red wire coming out of the stereo needs to be tapped in to an accessory (ACC) power source elsewhere in the vehicle, which I will discuss next. The yellow wire coming form the harness won't be connected to anything as the female end of the car harness isn't populated (meaning that there is nothing for the pin to attach to in the factory harness). T

2) You have to splice the ACC power to get it to power on. This is necessary because there is no ACC power wire in the harness to begin with. The closest one is the cigarette lighter. If you dig out the trim around the gear shift, and look underneath some foam, there's three wires wrapped up in some sticky black cloth tape stuff heading to the underside of the cig lighter: brown, yellow/black, and gray. The brown is ground, yellow/black is power, and the gray is illumination. You'll want to tap into the yellow/black wire for CD power. I opted to unhook the power from the cigarette lighter and just use it for the head unit as the head unit that I purchased has charging abilities and that is all I would have used the cigarette lighter for anyway. Also, in this year of C240 (and other closeby years, since most of the info that I gathered to get this working included information on other similar models and years) the cig lighter is in an awful spot because it is in a prime location for things to fall down in there and short things out that blow the fuse. (SIDE NOTE: the fuse for the cigarette lighter is in the fuse box in the top driver's side corner under the hood. It is a 15 amp fuse in slot 47. There's a tool in the left side of the trunk, in the other fusebox, for removing the fuses. Obviously, this has to be intact for this wire to work for accessory power. I mention it because mine was blown.) Once you've made those connections, the speaker connections that match color to color with this metra harness and the ones out of the back of your radio should match up with the harness coming from the car (at least they did in mine).

I give this 4 stars because in this situation, I had to do some extra tapping and moving around. It wasn't a simple plug n' play install. It is made well, though, and ultimately did save a TON of time as opposed to cutting all the wires and connecting them on my own. I hope this review has been helpful - it is a culmination of many hours of research, YouTube, and frustration!
4 people found this helpful
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John M. Krumenacker
5.0 out of 5 stars Perfect T1N wiring harness.
Reviewed in the United States on August 26, 2023
Style: Wiring HarnessProduct Packaging: Standard PackagingVerified Purchase
Perfect for the T1N. Wires up with ease and installs well.
One person found this helpful
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Amazon Customer
5.0 out of 5 stars Worked great for upgrading my Lotus Elise's head unit
Reviewed in the United States on May 3, 2015
Style: Wiring HarnessProduct Packaging: Standard PackagingVerified Purchase
Worked great for upgrading my Lotus Elise's head unit. I did have to swap the power and switched wires to make all the colors match my Pioneer (a nit-picky change - it would work without swapping them). It was pretty easy using a jewelers small flathead screwdriver to push the pins out of the connector and replace them in the correct slot. I wrote a guide if that helps: google search for "howtune lotus head unit".

Overall, worked great, fit perfectly, snapped on as it should. The gauge of the wires used in this adapter are significantly bigger then those that come with the aftermarket head unit, so no worries there. Be sure to solder them up for the best results!
Customer image
Amazon Customer
5.0 out of 5 stars Worked great for upgrading my Lotus Elise's head unit
Reviewed in the United States on May 3, 2015
Worked great for upgrading my Lotus Elise's head unit. I did have to swap the power and switched wires to make all the colors match my Pioneer (a nit-picky change - it would work without swapping them). It was pretty easy using a jewelers small flathead screwdriver to push the pins out of the connector and replace them in the correct slot. I wrote a guide if that helps: google search for "howtune lotus head unit".

Overall, worked great, fit perfectly, snapped on as it should. The gauge of the wires used in this adapter are significantly bigger then those that come with the aftermarket head unit, so no worries there. Be sure to solder them up for the best results!
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Customer image
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One person found this helpful
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Jake Patrie
5.0 out of 5 stars Fit my 2003 Chevy Malibu
Reviewed in the United States on February 28, 2023
Style: Wiring HarnessProduct Packaging: Standard PackagingVerified Purchase
Hooked right up to the factory harness and allowed me to put in an aftermarket head unit without cutting any wires or doing any crimping or soldering. What more can I ask for?
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Top reviews from other countries

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NS rural sketcher
5.0 out of 5 stars Works fine for a City Jetta; simply pay attention and all will be well
Reviewed in Canada on September 23, 2019
Style: Wiring HarnessProduct Packaging: Standard PackagingVerified Purchase
This worked fine for my 2007 City Jetta, contrary to Amazon's indication. It makes installation of an aftermarket radio pretty simple if you are systematic. The wire colour coding matched the JVC radio I installed, and as a bonus, most crucial wires had printed labels. If you can make joints, solder, and insulate (remember to put the heat-shrink tubing on before you solder if you use it rather than tape) all should go well if you pay attention. You will almost certainly also need an antenna adaptor, BTW, so research that too. Be aware that you may not need the provisions for a powered antenna; there is lots of discussion on the web.
One person found this helpful
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Cesar@lf
4.0 out of 5 stars Cumple su cometido
Reviewed in Mexico on October 11, 2017
Style: Wiring HarnessProduct Packaging: Standard PackagingVerified Purchase
Nada fascinanante, pero esta bien hecho y con buenos materiales. La bolsa incluye el codigo de colores en caso de que tengas problemas con eso. El cable se siente de muy buena calidad, no se si sea cobre pero si lo parece y hace su trabajo. Quito una estrella porque es un producto caro pero no lo conseguía en Mexico así que, ni hablar.
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Gary's Mobile
5.0 out of 5 stars 2001 Cabrio. Wiring harness for perfect. Thank you
Reviewed in Canada on September 19, 2022
Style: Wiring HarnessProduct Packaging: Standard PackagingVerified Purchase
Easy install, easy to read instructions. Wired in and works exactly as designed. Would definitely buy again.
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Amazon Customer
5.0 out of 5 stars 2003 VW beetle
Reviewed in Canada on May 27, 2023
Style: Wiring HarnessProduct Packaging: Standard PackagingVerified Purchase
Easy set up works good
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Amazon Customer
5.0 out of 5 stars 2003 VW beetle
Reviewed in Canada on May 27, 2023
Easy set up works good
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Peter J.
5.0 out of 5 stars Essential for a new head unit install!
Reviewed in Canada on September 26, 2021
Style: Wiring HarnessProduct Packaging: Standard PackagingVerified Purchase
I purchased a new Kenwood head unit for my 2007 New Beetle Convertible. In order to properly wire the new head unit, I purchased this wiring harness. What I like about these Metra harnesses is that they allow the stock head unit wiring to be utilized with a minimum of hassle. The wires coming off the plug are very long and you will likely need to cut them shorter for use, but I can't stress enough the importance of doing a test fit. This is truly a case of "measure twice, cut once". You don't want to cut the wires too short or too long as you may run into a situation where the Metra harness will be unusable if the wiring is cut too short.
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