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Metra 70-1787 Radio Wiring Harness for VW/Audi Bose Integration 1993-2007

by Metra
3.4 out of 5 stars 58 customer reviews
| 15 answered questions

List Price: $15.40
Price: $10.19 & FREE Shipping on orders over $35. Details
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Standard Packaging
  • AMPLIFIED
  • AND
  • BOSE
  • SYSTEMS
  • USES
  • THE
  • POWER
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23 new from $6.67
$10.19 & FREE Shipping on orders over $35. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Metra 70-1787 Radio Wiring Harness for VW/Audi Bose Integration 1993-2007
  • +
  • Metra 40-VW54 VW Amplified Antenna Adapter
  • +
  • Audi A4 02 - 08 SDIN - DDIN kit (Matte Black)
Total price: $41.74
Buy the selected items together


Technical Details

Product Packaging: Standard Packaging
  • Brand Name: Metra
  • Model Number: 70-1787

Product Description

Product Packaging: Standard Packaging

Metra radio wiring harness for VW/AUDI BOSE INTEGRATION 96-UP

Product Information

Product Packaging:Standard Packaging

Technical Details

Item Weight 0.8 ounces
Product Dimensions 7.5 x 4.5 x 2 inches
Origin USA
Item model number 70-1787

Additional Information

ASIN B0007WW64O
Customer Reviews
3.4 out of 5 stars 58 customer reviews

3.4 out of 5 stars
Shipping Weight 0.8 ounces (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available December 21, 2008

Warranty & Support

Warranty, Parts:Parts

Customer Reviews

Top Customer Reviews

Package Type: Standard Packaging Verified Purchase
I purchased this item for my 2000 audi A6 with bose stereo so i could install a pioneer head unit. when installed as directed, the speakers all emitted a high pitched alternator whine whether i was listening to the stereo or a cd. i knew the HU worked properly, and so did the factory stereo, so i checked the harness for possible fixes. i found no unwanted noises came through the speaker when, instead of hooking the rca adapters (on the harness) up to the preamp outputs (on the HU), i hooked the speaker level outputs (on the stereo) to the rca adapters (on the harness). so to fix the problem, i cut the RCA adapters off the harness, and soldered those wires directly to the speaker level outputs from the HU. now everything works and sounds great. I must admit, i expected more from metra. also - if you upgrade stereos, remember to get an antenna amplifier - audi doesn't use whip antenna's,and chances are your radio won't amplify the signal enough (even in the city).
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Package Type: Standard Packaging Verified Purchase
Used as a harness adapter in a 2000 Porsche Boxster (986) with stock amplified sound system for a cheap aftermarket head unit. Plugs right in, connect a few wires, and it was good to go. Happy with the purchase and the price.
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Package Type: Standard Packaging Verified Purchase
after waisting $30 on a dash kit with wire harness (that didn't work) i didn't see a lose spending another $10 on this harness... i installed it into my 2000 audi a4 quattro and wow does it sound great with a new head unit but theres a trick it will work with the rca's but it will play low after reading other reviews i cut the rca's and hooked them up to the speaker output and its loud and clear
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Package Type: Standard Packaging Verified Purchase
I used this to install an aftermarket single-DIN radio in a Boxster.

Wiring this up with the fairly straightforward instructions took about twenty minutes including soldered connections with heat-shrink tubing -- means of connection I recommend for faultless reliability.

Then the install process took about fifteen minutes, mostly to deal with the trim around the old radio.

Works perfectly, looks and acts professional, and facilitates a reversible installation.

PS: this is the same harness supplied by car-audio specialty re-sellers for many Porsche/VW/Audi vehicles; applicable to those models that do not require a bus decode to provide switched power.
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Package Type: Standard Packaging Verified Purchase
When I bought this and connected it in my 2000 Audi A4 with Bose stereo, no sound came out. I was disappointed to say the least. After checking and double checking my wiring I found the harness was incorrectly assembled. The pins for the pre-amp out were in the wrong spot on the audi side of the harness. I had to pull them out and re-insert them into the correct spots in the red harness to get them to work correctly. This is not too bad if you have the right tools, but still a pain that it was not correct when I purchased them.
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Package Type: Standard Packaging Verified Purchase
Good quality, nice fit and plenty of cable to work with. For a Porsche 996 the constant and switched power leads are reversed, be careful.
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Package Type: Standard Packaging Verified Purchase
the item was 10$ so why not right?
ended up getting it and wireing everything, super easy since its all color coated.
but right as i turned my car on i knew something was up, no power what so ever. so first thing was first, checked fuzes and made sure all wires were connected right. everything was right.
next i pulled out my handy dandy multimeter tester and what do you know...there was no 12v constant(from what the wires where labeled it was wrong) so i started checking more...well the 12v switch was actually my ground, my ground was my 12v constant and my 12v constant was my ground....kind of anyoying messing with all of these, also does not include antani adapter, nor the telephone option.
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Package Type: Standard Packaging Verified Purchase
Got this for 2002 Porsche Carrera with the Bose system. The adapters fit perfectly.

However, for my installation, it didn't work. There is only wiring for the front speakers. It is missing the full set of rear speaker wires on the black adapter. The Porsche Bose system does not work with the RCA preamp outlets. So, if your install doesn't work using the RCA preamp outputs, you have to hard wire the front and rear speakers. For my installation, I had to buy the Metra 70-1784 wire harness as well to make my installation work.

It would be just better if Metra would just add the rear speaker wires in the harness if you use them or not.
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Metra 70-1787 Radio Wiring Harness for VW/Audi Bose Integration 1993-2007
This item: Metra 70-1787 Radio Wiring Harness for VW/Audi Bose Integration 1993-2007
Price: $10.19
Ships from and sold by Amazon.com
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