---
product_id: 329609425
title: "Teclink Optical Fiber Decoder Box for Car Stereo Mercedes ML W164 GL X164 E-Class (2008-2009) SLK (2008-2011) CLK-Class Porsche Cayenne: MOPC-1"
brand: "dnl"
price: "£120.38"
currency: GBP
in_stock: true
reviews_count: 8
category: "Dnl"
url: https://www.desertcart.co.uk/products/329609425-teclink-optical-fiber-decoder-box-for-car-stereo-mercedes-ml
store_origin: GB
region: United Kingdom
---

# Preserves premium Harman Kardon & Bose sound Plug & play optical fiber interface Compatible with 9+ Mercedes & Porsche models Teclink Optical Fiber Decoder Box for Car Stereo Mercedes ML W164 GL X164 E-Class (2008-2009) SLK (2008-2011) CLK-Class Porsche Cayenne: MOPC-1

**Brand:** dnl
**Price:** £120.38
**Availability:** ✅ In Stock

## Summary

> 🎧 Upgrade your drive with flawless sound—because your car deserves the best.

## Quick Answers

- **What is this?** Teclink Optical Fiber Decoder Box for Car Stereo Mercedes ML W164 GL X164 E-Class (2008-2009) SLK (2008-2011) CLK-Class Porsche Cayenne: MOPC-1 by dnl
- **How much does it cost?** £120.38 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/329609425-teclink-optical-fiber-decoder-box-for-car-stereo-mercedes-ml)

## Best For

- dnl enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Installation:** True plug & play design means zero hassle—get back on the road faster.
- • **Audiophile-Grade Clarity:** Experience crisp, clean sound quality rivaling factory head units—no compromises.
- • **Seamless Sound Integration:** Keep your factory Harman Kardon & Bose audio flawless with any aftermarket radio upgrade.
- • **Wide Vehicle Compatibility:** Supports Mercedes ML, GL, E-Class, SLK, CLK, C-Class, R-Class & Porsche Cayenne (2003-2013).
- • **Steering Wheel Control Ready:** Maintains full steering wheel control via radio or CAN bus for ultimate convenience.

## Overview

The Teclink Optical Fiber Decoder Box is a precision adapter designed for Mercedes and Porsche vehicles equipped with factory Harman Kardon or Bose sound systems. It enables seamless integration of aftermarket radios from top brands like Alpine, JVC, Kenwood, and Pioneer, preserving premium audio quality and steering wheel controls. Compatible with multiple models from 2003 to 2013, this lightweight, plug & play device ensures an effortless upgrade without sacrificing sound fidelity.

## Description

Teclink Optical Fiber Decoder Box compatible for Car Stereo Mercedes ML W164 GL X164 E-Class SLK CLK-Class Porsche CayenneThis optical fiber adapter is needed for the vehicles with factory Harman Kardon & Bose sound system;Keeps the factory Harman Kardon & Bose sound system working when installing an aftermarket radio like Alpine, JVC, Kenwood or Pioneer etc where the steering wheel control is controlled either via the radio or CAN busCompatible for Mercedes with Harman Kardon Sound system and Porsche with Bose Sound SystemML (W164) 2005-2011GL (X164) 2006-2010E Class 2008-2009SLK R171 2008-2011CLK W209 2004-2009C-Class (W203) 2004-2007R-Class (W251) 2006-2013Porsche Cayenne 2003-2010

Review: Worked perfectly in a 2009 SL63 R230 Mercedes-Benz convertible - This product worked PERFECTLY and worked where 3 other boxes FAILED to operate in an R230 Mercedes Benz 2009 SL63 with Harman-Kardon stereo/speaker system and a TOTALLY AWESOME Dudu7 12gb 9.5" 512gb storage head unit. Huuuuge upgrade for my 2009 SL63! Highly recommended.
Review: It's very, very good - I've bought it. I've opened the box. Soldering quality seems a little (but not much) better than me in my garage. But it works, and works well. Compared to a blue adapter box from another vendor, this gives much cleaner and crispier sound. In fact, the sound with an aftermarket system is now just as good as from a factory Porsche head unit. This adapter is pricey, yes, but worth it.

## Features

- This optical fiber adapter is needed for the vehicles with factory Harman Kardon & Bose sound system when installing an aftermarket radio like Alpine, JVC, Kenwood or Pioneer etc where the steering wheel control is controlled either via the radio or CAN bus
- Compatible for Mercedes and Porsche: ML (W164) 2005-2011 | GL (X164) 2006-2012 | E-Class 2008-2009 | SLK R171 2008-2011 | CLK W209 2004-2009 | C-Class (W203) 2004-2007 | R-Class (W251) 2006-2013 | Porsche Cayenne 2003-2010; Not for D2B Optical Bus sound system
- Keeps the factory Harman Kardon & Bose sound system working when installing an aftermarket radio like Alpine, JVC, Kenwood or Pioneer etc
- The RCA cable is included;
- Easy to install, just plug and play

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B094Y8J6DT |
| Audio Output Mode | Stereo |
| Best Sellers Rank | #184,446 in Electronics ( See Top 100 in Electronics ) #2,978 in Car Audio Receivers |
| Brand | DNL |
| Brand Name | DNL |
| Compatible Devices | Smartphone, Speaker |
| Customer Reviews | 4.2 out of 5 stars 46 Reviews |
| Interface | Optical |
| Interface Type | Optical |
| Item Weight | 100 Grams |
| Manufacturer | DNL |
| Number of Channels | 4 |
| UPC | 760385297005 |

## Product Details

- **Brand:** DNL
- **Interface Type:** Optical
- **Manufacturer:** DNL
- **Number of Channels:** 4
- **UPC:** 760385297005

## Images

![Teclink Optical Fiber Decoder Box for Car Stereo Mercedes ML W164 GL X164 E-Class (2008-2009) SLK (2008-2011) CLK-Class Porsche Cayenne: MOPC-1 - Image 1](https://m.media-amazon.com/images/I/41DljKzmo9S.jpg)
![Teclink Optical Fiber Decoder Box for Car Stereo Mercedes ML W164 GL X164 E-Class (2008-2009) SLK (2008-2011) CLK-Class Porsche Cayenne: MOPC-1 - Image 2](https://m.media-amazon.com/images/I/51FubRPF2FS.jpg)
![Teclink Optical Fiber Decoder Box for Car Stereo Mercedes ML W164 GL X164 E-Class (2008-2009) SLK (2008-2011) CLK-Class Porsche Cayenne: MOPC-1 - Image 3](https://m.media-amazon.com/images/I/51NkMhAhLzL.jpg)
![Teclink Optical Fiber Decoder Box for Car Stereo Mercedes ML W164 GL X164 E-Class (2008-2009) SLK (2008-2011) CLK-Class Porsche Cayenne: MOPC-1 - Image 4](https://m.media-amazon.com/images/I/51v8V+BfG1L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked perfectly in a 2009 SL63 R230 Mercedes-Benz convertible
*by J***E on October 21, 2025*

This product worked PERFECTLY and worked where 3 other boxes FAILED to operate in an R230 Mercedes Benz 2009 SL63 with Harman-Kardon stereo/speaker system and a TOTALLY AWESOME Dudu7 12gb 9.5" 512gb storage head unit. Huuuuge upgrade for my 2009 SL63! Highly recommended.

### ⭐⭐⭐⭐⭐ It's very, very good
*by R***N on January 27, 2024*

I've bought it. I've opened the box. Soldering quality seems a little (but not much) better than me in my garage. But it works, and works well. Compared to a blue adapter box from another vendor, this gives much cleaner and crispier sound. In fact, the sound with an aftermarket system is now just as good as from a factory Porsche head unit. This adapter is pricey, yes, but worth it.

### ⭐⭐⭐⭐⭐ Easy simple install
*by L***E on November 4, 2023*

Works correctly for a 2003 W211. My car had the MB "Audio 50" head and has the Harmon Kardon system. This unit made updating from the Audio 50 head to a modern Carplay compatible unit a breeze. This unit allows the original trunk mounted HK amplifier to be used via the fiber optic connection in the front head console.

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**Shop now:** [https://www.desertcart.co.uk/products/329609425-teclink-optical-fiber-decoder-box-for-car-stereo-mercedes-ml](https://www.desertcart.co.uk/products/329609425-teclink-optical-fiber-decoder-box-for-car-stereo-mercedes-ml)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-04*