Best Car Wiring Harnesses for Audi of 2026

Kenneth Collin Avatar
Kenneth Collin
Last Updated: 5 Feb 2026

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Car Wiring Harnesses for Audi are electrical cables and connectors that transmit signals and power throughout the vehicle. They help to stabilise the electrical system and ensure that all components are working correctly. These wiring harnesses are specifically designed for Audi models and are made to fit perfectly with the car's electrical system. They are made of high-quality materials that ensure durability and longevity. These wiring harnesses come in a variety of sizes and shapes to fit different Audi models, and they are essential for proper functioning of the car's electrical system.

At a Glance: Our Top Picks

XTRONS Car ISO Harness Adapter with Converter Cover #TOP 1
XTRONS Car ISO Harness Adapter with Converter
ftb score rating icon 9.9
Jayubien 16Pin Radio Wiring Harness for VW Audi Mercedes Cover #TOP 2
Jayubien 16Pin Radio Wiring Harness for VW Audi Mercedes
ftb score rating icon 9.8
6 Pin Connector for Audi A1 & Q3 Cover #TOP 3
6 Pin Connector for Audi A1 & Q3
ftb score rating icon 9.6

Top 7 Car Wiring Harnesses for Audi

XTRONS Car ISO Harness Adapter with Converter

AK/INIB/NRCBL
For Audi A3 A4
SMALL
XTRONS Car ISO Harness Adapter with Converter Cover
XTRONS Car ISO Harness Adapter Connector Cable with High to Low Impedance Converter, Android Auto Car Stereo Radio Player compatible with Au-di A3 A4

The XTRONS ISO Harness Adapter is designed to enhance your car audio experience, particularly for Au-di A3 and A4 models. This adapter features a High to Low Impedance Converter, which effectively addresses issues such as rear speakers producing no sound or static noise after installing car stereos. Its compatibility with XTRONS head units ensures a seamless integration, making it a convenient choice for your audio upgrades. With this adapter, you can enjoy clear sound and a hassle-free installation process.

What We Like
Eliminates static noise issues
High to low impedance conversion
Compatible with Au-di A3/A4
Seamless integration with XTRONS units
#TOP 2

Jayubien 16Pin Radio Wiring Harness for VW Audi Mercedes

JAYUBIEN
USJY100
Jayubien 16Pin Radio Wiring Harness for VW Audi Mercedes Cover
Jayubien 16Pin Radio Wiring Harness Compatible with Volkswagen Audi Mercedes-Benz 1990-2004 ISO Car Stereo Connector Plug Wire Adapter

The Jayubien Radio Wiring Harness is a versatile solution for connecting your car audio system. It is compatible with various Volkswagen models, including the Beetle and Golf, as well as Audi and Mercedes-Benz vehicles. This harness features a 16Pin stereo connector that allows for a simple plug-and-play installation without the need for cutting or splicing wires. Enjoy the convenience of directly connecting your stereo system to your car's factory setup, making it an ideal choice for enhancing your in-car audio experience.

What We Like
Easy plug-and-play installation
Compatible with multiple car brands
No wire cutting needed
Perfect fit for factory systems
#TOP 3

6 Pin Connector for Audi A1 & Q3

PA03298373
6 Pin Connector for Audi A1 & Q3 Cover
6 Pin Connector Fits Audi A1 & Q3 Rear Tail Light Plug Wiring Harness Loom

The Audi A1 & Q3 Connector is essential for anyone needing to replace or repair their rear tail light plug wiring harness. It includes one connector housing, which ensures a secure fit for your vehicle's wiring. With six terminals, you'll have the necessary connections for a reliable setup. Additionally, the six included seals protect against moisture and dirt, enhancing the durability of your connections. This product makes your repair or installation straightforward and efficient, giving you peace of mind on the road.

What We Like
Secure fit for wiring
Includes protective seals
Easy to install
Reliable connections
#TOP 4

ECSiNG 2 Pin Connector Plug for VW Audi

3B0972702,1J0971972
ECSiNG 2 Pin Connector Plug for VW Audi Cover
ECSiNG 2x 2 Pin Connector Plug Compatible with VW Audi Skoda Seat 3B0972702 1J0971972 Car LED Door Warning Light Wire Cable Harness Vehicle Accessories Electrical Components Wiring Looms

The ECSiNG 2 Pin Connector is designed for VW, Audi, Skoda, and Seat vehicles that lack under-door logos or lights. With reference part numbers 3B0972702 and 1J0971972, it is perfect for retrofitting LED, courtesy, footwell, and step side lights. The red and black cable wires allow for easy connection, with the red indicating the positive pole and the black the negative. This 2 Pin connector features a straightforward plug-and-play design, making installation hassle-free and convenient for users.

What We Like
Compatible with multiple car brands
Easy plug-and-play installation
Suitable for various lighting types
Clear positive and negative wiring
Retrofit under-door logos easily

Bingfu Car Stereo Wiring Harness for Audi Porsche

XD11
XD11
Bingfu Car Stereo Wiring Harness for Audi Porsche Cover
Bingfu Car Stereo Wiring Harness for Select 93-08 Audi Porsche Boxster Amp Amplifier System Vehicle Radio Wire Harnesses Adapter 16+20 Pin with RCA Connectors DA22

The Bingfu Wiring Harness simplifies connecting an aftermarket stereo to your Audi or Porsche's factory amplifier system. With this harness, there’s no need for cutting wires, as it allows for a straightforward plug-and-play installation. It features a 16+20 pin connection for power and speakers, ensuring compatibility with your vehicle. Additionally, it utilises pre-amp outputs, which means you can enjoy enhanced audio quality while retaining the functionality of your original amplifier.

What We Like
No cutting wires required
Easy plug-and-play installation
Retains factory amplifier function
Compatible with aftermarket stereos
Includes RCA connectors
#TOP 6

ECSiNG 6 Pin Tail Light Connector for Audi

1J0973733
ECSiNG 6 Pin Tail Light Connector for Audi Cover
ECSiNG Car Taillight Wire Harness Connector 6 Pin Rear Light Loom Wiring Female Plug 11cm 6Q0937702 Compatible with Audi A1 2010-2018 Q3 2011-2018 Q5

The ECSiNG Tail Light Connector is designed for Audi A1 (2010-2018), Q3 (2011-2018), and Q5 models. Its compatibility ensures a proper fit, providing you with steady performance for your vehicle's rear lights. This connector is particularly useful for repairing common issues with faulty or burnt-out light connectors, allowing your lights to function effectively. Made of high-quality copper and durable plastic, it guarantees longevity and reliability in use, ensuring your car operates smoothly.

What We Like
High compatibility with Audi models
Durable materials used
Repairs common light issues
Ensures steady performance

Autoleads PC2-18-4 Car Stereo Harness Adaptor

PC2-18-4
Autoleads PC2-18-4 Car Stereo Harness Adaptor Cover
Autoleads PC2-18-4 Car Audio Harness Adaptor Lead - Audi Volkswagen

The Autoleads PC2-18-4 Harness allows you to easily connect an aftermarket car stereo without the need for cutting the original vehicle harness. This means you can preserve your car's wiring integrity while enjoying an upgraded sound system. The simple connection process speeds up the installation, making it more convenient for you. Made from 100% copper cable, it ensures reliable performance and durability, while the connectors meet ISO and original equipment standards for compatibility.

What We Like
Easy aftermarket stereo connection
No cutting required
Quick installation process
Durable copper construction
ISO standard connectors
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How much does it cost to replace a wiring harness in a car?

The cost to replace a car wiring harness is $1,300-$1,700. The labor for the replacement is about $400-$500. You might expect to pay more for Power Braiding and for the increased complexity of your fuel injection system.

2. What are wiring harnesses in cars for?

A wiring harness is an organized set of wires, terminals and connectors that run throughout the entire vehicle and relay information and electric power, thereby playing a critical role in “connecting” a variety of components.

3. Are all car wiring harnesses the same?

Each vehicle has a different wiring story. Sometimes you have a choice of harnesses that will work in your car. Other times, you might need more than one harness to complete the installation.

4. How long does it take to replace a wiring harness in a car?

If the wiring harness in question is located in a tough-to-reach area, the technician may need to disassemble parts of the vehicle to gain access. In other words, installing a wiring harness could take as little as an hour, as long as 20 hours, or longer if complications arise.

Editor's Notes

During our car wiring harness for audi research, we found 64 car wiring harness for audi products and shortlisted 7 quality products. We collected and analyzed 2,803 customer reviews through our big data system to write the car wiring harnesses for audi list. We found that most customers choose car wiring harnesses for audi with an average price of £13.01.

The car wiring harnesses for audi are available for purchase. We have researched hundreds of brands and picked the top brands of car wiring harnesses for audi, including XTRONS, JAYUBIEN, PA Products, ECSiNG, Bingfu.

Written by
Kenneth Collin Avatar

Kenneth Collin graduated from Imperial College, London, at 22. He is a UX/UI designer, a web developer, and a writer, amongst others. At age 14, Kenneth programmed his first app. Kenneth's app served as a remote control for censored devices. "When I was 8, I would pick up scraps from electronics and try to rebuild or at least fix them," Kenneth said in one of his recent articles on Home repairs for top gadgets.