--- product_id: 201159825 title: "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: "328.46 DT" currency: TND in_stock: true reviews_count: 13 category: "Xtrons" url: https://www.desertcart.tn/products/201159825-car-iso-harness-adapter-connector-cable-with-high-to-low store_origin: TN region: Tunisia --- # High to Low Impedance Converter 40-pin ISO connector Plug & Play installation 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:** 328.46 DT **Availability:** ✅ In Stock ## Summary > 🔧 Upgrade your ride’s sound system without the stress—plug in, play on! ## Quick Answers - **What is this?** 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?** 328.46 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/201159825-car-iso-harness-adapter-connector-cable-with-high-to-low) ## 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:** Premium copper and plastic materials ensure long-lasting reliability. - • **Trusted Support:** Backed by XTRONS professional service and a 3-month warranty for peace of mind. - • **Crystal Clear Audio:** High to Low Impedance Converter eliminates static and restores rear speaker sound. - • **Seamless Compatibility:** Perfectly fits Audi A3/A4 40-pin harnesses for hassle-free upgrades. - • **Effortless Installation:** Plug & play design with clear instructions—no splicing or modifications needed. ## Overview The XTRONS Car ISO Harness Adapter Connector Cable is a precision-engineered 40-pin ISO cable with a built-in high to low impedance converter, designed specifically for Audi A3 and A4 models. It solves common audio issues like rear speaker silence or static after stereo upgrades, offering a durable, plug-and-play solution backed by professional support and a 3-month warranty. ## 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: 53 pin - Great , soon as I installed it, the unit worked first time, so anyone who buys the x trim head unit check if you have a 52 pin plug , if so , you may need this. ## 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 | | Best Sellers Rank | 3 in Car Wiring Harnesses | | Brand | XTRONS | | Cable Type | ISO | | Connector Type | RCA | | Connector type | RCA | | Country Of Origin | China | | Customer Reviews | 4.4 out of 5 stars 310 Reviews | | Global Trade Identification Number | 05055869134712 | | Item Dimensions | 18 x 11 x 7 centimetres | | Item Weight | 0.2 Kilograms | | Item dimensions L x W x H | 18 x 11 x 7 centimetres | | Item weight | 0.2 Kilograms | | Manufacturer | XTRONS | | Manufacturer Part Number | AK/INIB/NRCBL | | Material | Copper , Plastic | | Model Number | AK/INIB/NRCBL | | Number of items | 1 | ## 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 ![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) ![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 2](https://m.media-amazon.com/images/I/71NJkMdXGzL.jpg) ![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 3](https://m.media-amazon.com/images/I/71VQvsyBTCL.jpg) ![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 4](https://m.media-amazon.com/images/I/61EnF6h3HPL.jpg) ![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 5](https://m.media-amazon.com/images/I/51aanY-dwhL.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! ### ⭐⭐⭐⭐⭐ 53 pin *by C***T on 10 April 2026* Great , soon as I installed it, the unit worked first time, so anyone who buys the x trim head unit check if you have a 52 pin plug , if so , you may need this. ### ⭐⭐⭐⭐⭐ Works with Bose systems *by C***U on 22 February 2024* I just changed the unit of my Audi TT MK2 with a chinese one. There was a buzzing noise and the bass seemed to be off. Also the car has a Bose system. Checked the amplifier but still did not work properly. After checking with a shop specialised in car audio they advised me to buy a way more expensive unit. I just went and tried this adapter. Totally worth it. The noise is totally gone, the audio has improved a lot and also the bass is much better. For the price this is totally worth it. I'm not sure about the normal systems but i'm sure if you have Bose this will work. Also, the instalation was very simple. Just plug it in and see if it works. ## 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 - XTRONS Octa-Core Car Stereo Android 13 Radio Player 8 inch IPS HD GPS Navigation 4GB RAM 64GB ROM Upgrade DSP Built-in 4G LTE Bluetooth CarPlay Support AHD Camera DAB+ DVR TPMS for Audi A3 S3 RS3 8P - Keple Car Radio Removal Tool Key DIN Release Keys Set for Audi, VW VolksWagen, Mercedes Benz, BMW OEM Head Unit CD Media Player Pins | Universal Pin Stereo Hooks Tools (2 pairs) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/201159825-car-iso-harness-adapter-connector-cable-with-high-to-low](https://www.desertcart.tn/products/201159825-car-iso-harness-adapter-connector-cable-with-high-to-low) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-12*