---
product_id: 201159825
title: "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"
brand: "xtrons"
price: "₪211"
currency: ILS
in_stock: true
reviews_count: 13
category: "Xtrons"
url: https://www.desertcart.co.il/products/201159825-xtrons-car-iso-harness-adapter-connector-cable-with-high-to
store_origin: IL
region: Israel
---

# High to low impedance converter for clear sound 40-pin ISO harness compatibility Plug & play installation, no splicing needed 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

**Brand:** xtrons
**Price:** ₪211
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your ride’s sound game—no noise, just pure clarity!

## Quick Answers

- **What is this?** 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 by xtrons
- **How much does it cost?** ₪211 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/201159825-xtrons-car-iso-harness-adapter-connector-cable-with-high-to)

## Best For

- xtrons enthusiasts

## Why This Product

- Trusted xtrons brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Build Quality:** Premium copper and plastic materials ensure long-lasting, reliable performance.
- • **Effortless Plug & Play Setup:** No wiring splices or modifications—install in minutes with clear instructions.
- • **Trusted Professional Support:** Backed by XTRONS’ 3-month warranty and expert customer service for peace of mind.
- • **Seamless 40-Pin Compatibility:** Perfectly fits Audi A3/A4 and XTRONS head units for hassle-free upgrades.
- • **Crystal-Clear Audio Restoration:** Eliminates rear speaker static and silence with advanced impedance conversion.

## Overview

The XTRONS Car ISO Harness Adapter Connector Cable is a precision-engineered 40-pin adapter designed for Audi A3/A4 models and compatible XTRONS head units. Featuring a high to low impedance converter, it resolves rear speaker sound issues like static or silence after stereo upgrades. Its plug-and-play design requires no splicing, ensuring a quick, clean installation backed by a 3-month warranty and professional support.

## Description

How To Use 1. Turn OFF the unit, and locate the amps and the harness cables. 2. Remove the ISO harness from the XTRONS unit. （Support XTRONS IN79A3AP, IN79A4AP, IB79AA3RP, IB79AA4RP, IB79ATTRP, IB89ARAPL, IB89A4APL ect.） 3. Plug the red and white RCA connectors into color-coded jacks on the harness adapter. 4. Connect the harness adapter to the original harness of the XTRONS unit, it will perform as an extension harnessable here. Plug the harness back into the unit.Car ISO Harness Adapter Connector Cable with High to Low Impedance ConverterCompatible with XTRONS head units or other unit (fit for Au-di A3/A4 models) which use 40 pin harness.It would solve your problem that the vehicle's rear speakers have no sound or have static noise after installing car stereos.

Review: XTRONS Car ISO Harness Adapter Connector Cable - A Must-Have for Easy Installation - I recently used the XTRONS Car ISO Harness Adapter Connector Cable for my car audio installation, and I couldn’t be more satisfied with my purchase! Here’s why I think this product deserves a top rating: Pros: Perfect Fit: The connector fits seamlessly with both my car's wiring and the new head unit. No splicing or complicated modifications were necessary—just plug and play! Quality Construction: The cables feel durable and well-made. I appreciate the attention to detail, ensuring that they can withstand wear and tear over time. Clear Instructions: The included instructions were straightforward and easy to follow, making the installation process quick and hassle-free. Versatile Compatibility: It works well with a variety of car models, which is a huge plus if you plan to switch head units in the future. Cons: Limited Color Coding: While the wiring is generally intuitive, a few more color-coded labels would have made it even easier for first-time installers. Overall, the XTRONS Car ISO Harness Adapter Connector Cable is an excellent investment for anyone looking to upgrade their car audio system. It made my installation a breeze and saved me a trip to the shop. Highly recommended!
Review: Spot on - Bought a cheap HU from ali express for mk2 TT, everything worked perfectly except the sound was quiet and only in the front. This just plugs right in and the full sound is back front and rear. If you're having the same issue this is 100% what you need. Small point, I had to plug the Ls in Rs and the Front in the rear to make it right.

## Features

- 👉Car ISO Harness Adapter Connector Cable with High to Low Impedance Converter.
- 👉Compatible with XTRONS head units or another unit (fit for Au-di A3/A4 models) which uses a 40-pin harness.
- 👉It would solve your problem that the vehicle's rear speakers have no sound or have static noise after installing car stereos.
- 【XTRONS Professional Service】Backed by professional pre- and post-sales customer support, with a 3-month warranty, connect with us through desertcart email if you have any questions, ensuring a worry-free ownership experience.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B082SC6G94 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 3 in Car Wiring Harnesses |
| Colour | For Audi A3 A4 |
| Customer Reviews | 4.4 4.4 out of 5 stars (282) |
| Date First Available | 24 Oct. 2019 |
| Item Package Quantity | 1 |
| Item Weight | 200 g |
| Item model number | AK/INIB/NRCBL |
| Manufacturer | XTRONS |
| Material | Copper, Plastic |
| Part number | AK/INIB/NRCBL |
| Product Dimensions | 18 x 11 x 7 cm; 200 g |
| Size | SMALL |
| Style | For Audi A3 A4 |

## Product Details

- **Brand:** XTRONS
- **Connector type:** RCA
- **Item dimensions L x W x H:** 18 x 11 x 7 centimetres
- **Item weight:** 0.2 Kilograms
- **Material:** Copper, Plastic

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61r7tZ6PMqL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ XTRONS Car ISO Harness Adapter Connector Cable - A Must-Have for Easy Installation
*by M***D on 27 October 2024*

I recently used the XTRONS Car ISO Harness Adapter Connector Cable for my car audio installation, and I couldn’t be more satisfied with my purchase! Here’s why I think this product deserves a top rating: Pros: Perfect Fit: The connector fits seamlessly with both my car's wiring and the new head unit. No splicing or complicated modifications were necessary—just plug and play! Quality Construction: The cables feel durable and well-made. I appreciate the attention to detail, ensuring that they can withstand wear and tear over time. Clear Instructions: The included instructions were straightforward and easy to follow, making the installation process quick and hassle-free. Versatile Compatibility: It works well with a variety of car models, which is a huge plus if you plan to switch head units in the future. Cons: Limited Color Coding: While the wiring is generally intuitive, a few more color-coded labels would have made it even easier for first-time installers. Overall, the XTRONS Car ISO Harness Adapter Connector Cable is an excellent investment for anyone looking to upgrade their car audio system. It made my installation a breeze and saved me a trip to the shop. Highly recommended!

### ⭐⭐⭐⭐⭐ Spot on
*by J***E on 2 July 2025*

Bought a cheap HU from ali express for mk2 TT, everything worked perfectly except the sound was quiet and only in the front. This just plugs right in and the full sound is back front and rear. If you're having the same issue this is 100% what you need. Small point, I had to plug the Ls in Rs and the Front in the rear to make it right.

### ⭐⭐⭐⭐⭐ Works perfectly
*by S***K on 25 December 2025*

Works perfectly on 2011 Audi S3.

## Frequently Bought Together

- 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
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*Product available on Desertcart Israel*
*Store origin: IL*
*Last updated: 2026-03-19*