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Metra 70-1787 Wiring Harness

Install a new car stereo and retain factory amplifier in select 1996-2005 vehicles from Audi, Porsche

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• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

See compatible vehicles Learn more about the met-701787
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List price $33.99
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-47%

$17.99

 with warranty
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Description


Metra brand icon

Authorized dealer

Product Features:

  • Wire harness to Install a new car stereo in Compatible with select 1996-2005 vehicles from Audi, Porsche
  • Plugs into the cars original factory radio connectors
  • Color-coded wires for easy installation to the aftermarket radio
  • No wire cutting needed for factory radio connectors
  • 1-year Manufacturer's Warranty

Connections:

  • Red - Ignition/Accessory Wire of Aftermarket Radio
  • Yellow - Radio 12 Volt Battery or Memory Wire
  • Black - Radio Ground Wire
  • Orange/White - Illumination Wire of Aftermarket Radio
  • White - RCA to Left Front RCA Output of Aftermarket Radio
  • Gray - RCA to Right Front RCA Output of Aftermarket Radio

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Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

The vehicle you have selected 2022 Audi SQ8 is not compatible. Change vehicle or See list of compatible similar products


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Specifications & Details


Harness Features
Vehicle Sound System
Premium Sound
Main Harness Function
Install a Car Stereo & Bypass the Factory OEM Amplifier
Premium Harness Features
Factory System Amplification
Amplified
Compatible Premium Audio Systems
Standard Bose
On-Star Compatible
No
CAN-BUS Compatible
No
GM-LAN Compatible
No
Compatible with Aftermarket Navigation Systems
No
Chime Retention
No
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

70-1787

Weight:

0.24lbs

Internal SKU:

met-701787

Internal Product ID:

12519

Customer Ratings & Reviews


Metra 70-1787 Wiring Harness thumbnail image

5 star
67%
4 star
0%
3 star
0%
2 star
0%
1 star
33%



Durability
4
Value
3.7
Features
3.7
Design
3.5
Usability
3.7

Customer Reviews

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Doesn't work

I have a 2002 Audi TT with Bose Concert II system, this harness was supposed to enable me to install my new Pioneer aftermarket HU. The harness requires you to have two preamp outs on the HU, and also will not work if you hook up switched power wires together, or the dimmer wires. You need to run custom wires for your dimmer and switched power. The rest of it worked, but why wasn't there instructions on how to properly hook it up?

By Eric on November 29, 2013

39 found this helpful


Great Harness!

This was the basic harness i needed for my Audi A6, and it worked great!

By CJ on July 17, 2010

36 found this helpful


Easy to use

Simple wiring harness, worked wonderfully! Free makes me very happy too!

By Mikell on February 17, 2014

35 found this helpful


Not Bad!

All adapters match up perfectly! Wish they left a little more of the wires stripped, but it worked out ok. Highly recommend.

By Jordan on February 14, 2012

35 found this helpful


Make sure that you are getting the correct harness.

My Audi has a Symphony system and this harness only works for the Bose.

By George on March 13, 2015

33 found this helpful


ohhh yeah.

It works for my 2000 audi a8

By brendan on March 14, 2012

33 found this helpful



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  • Owner's manual
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  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.