---
product_id: 77281727
title: "Smartnavi Car stereo radio Optical Fiber Decoder Most Box for Mercedes Benz CL/CLS/E/S/SL/SLK"
brand: "smartnavi"
price: "€ 16.60"
currency: EUR
in_stock: false
url: https://www.desertcart.ie/products/77281727-smartnavi-car-stereo-radio-optical-fiber-decoder-most-box-mercedes
store_origin: IE
region: Ireland
---

# Plug & Play Optical Interface Vehicle Compatibility Smartnavi Car stereo radio Optical Fiber Decoder Most Box for Mercedes Benz CL/CLS/E/S/SL/SLK

**Brand:** smartnavi
**Price:** € 16.60
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate Your Drive with Crystal Clear Sound!

## Quick Answers

- **What is this?** Smartnavi Car stereo radio Optical Fiber Decoder Most Box for Mercedes Benz CL/CLS/E/S/SL/SLK by smartnavi
- **How much does it cost?** € 16.60 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/77281727-smartnavi-car-stereo-radio-optical-fiber-decoder-most-box-mercedes)

## Best For

- smartnavi enthusiasts

## Why This Product

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

## Key Features

- • **User-Friendly Design:** Enjoy a plug-and-play experience without the fuss.
- • **Cost-Effective Upgrade:** Reduce installation fees with our easy setup.
- • **No Hassle Installation:** Say goodbye to long cable runs; connect everything upfront.
- • **Seamless Sound Integration:** Decode your Bose or Harmon Kardon systems effortlessly.
- • **Tailored for Luxury Models:** Perfect fit for select Mercedes Benz models from 2003-2008.

## Overview

The SMARTNAVI Car Stereo Radio Optical Fiber Decoder is designed specifically for select Mercedes Benz models, allowing seamless integration with Bose and Harmon Kardon sound systems. This decoder eliminates the need for lengthy cable installations, making it a cost-effective and user-friendly upgrade for audiophiles seeking to enhance their in-car audio experience.

## Description

Notes:  1. If your car has optic fiber optic fiber amplifier located under the main or assistant driver's seat or in your car's trunk, or if your car comes with optic fiber Harmon Kardon system, please order this optic fiber decoder box. 2. This MOST BOX can NOT decode the D2B Optical Bus System (COMAND 2.0 & COMAND 2.5). 3. If you are not sure whether this MOST box will fit your car or not, please email us to check before ordering.  Installation Steps:  Step 1: The installation of this optic fiber decoder is quite easy. Please follow the below steps to install the decode to get sound. Step 2: MOST BOX power wiring, please connect the black wire to your car's GND wire, yellow B+ wire to your car's B+/BATT wire. Step 3: For the white plug and the red plug on the decoder, please simply connect them to the car radio unit RCA cable's FRONT OUT L and REAR OUT R as in the below picture. (AUX IN L to your car's FRONT OUT L,AUX IN R to your car's REAR OUT R).

## Features

- Decode Bose or Harmon Kardon with optical interface: This optic fiber decoder box will keep your original car's optic fiber amplifier or Harmon Kardon system or Bose sound system work.
- Suitable Vehicle Type: For Mercedes Benz CL(2004-2006)/CLS(2005-2008)/E(2003-2008)/S(2004-2006)/SL(2005-2008/SLK(2005-2008).
- No need to run 6 meter long cables from front to rear (your car's trunk).
- Reduce installation fee,easy to install. All cables just need to be connected in front.
- Easy to install, plug and play.

## Images

![Smartnavi Car stereo radio Optical Fiber Decoder Most Box for Mercedes Benz CL/CLS/E/S/SL/SLK - Image 1](https://m.media-amazon.com/images/I/61cRizMzuAL.jpg)
![Smartnavi Car stereo radio Optical Fiber Decoder Most Box for Mercedes Benz CL/CLS/E/S/SL/SLK - Image 2](https://m.media-amazon.com/images/I/61ZEcckJWsL.jpg)
![Smartnavi Car stereo radio Optical Fiber Decoder Most Box for Mercedes Benz CL/CLS/E/S/SL/SLK - Image 3](https://m.media-amazon.com/images/I/61QtCUKsmqL.jpg)
![Smartnavi Car stereo radio Optical Fiber Decoder Most Box for Mercedes Benz CL/CLS/E/S/SL/SLK - Image 4](https://m.media-amazon.com/images/I/71u+-ZCpBVL.jpg)

## Questions & Answers

**Q: I saw a lot of bad comments, so my question is, if the unit doesn't work, can I return it?**
A: Yes, I did actually return mine and got a refund. Better to just run the correct cable from front to back...

**Q: Is this suitable for a 2007 porsche cayman with bose?**
A: No, it's not. But we have the other asin B079D9GR65 fits your  2007 porsche cayman with bose. Thanks.

**Q: Is this suitable for a 2003 911 c4s with bose ?**
A: Hello, it is only suitable for Porsche 911 (2005-2012), it is not among them, you can go to the website for precise search, you can find it, hope it will help you. Thank you

**Q: Is this suitable for a 2003 merc sl55 amg**
A: Not sure, my car was a E320 cdi with a fiber optic info system - amp in the boot.  It was a bit tricky to fit but it works fine.  There are a few useful video's on YouTube.

---

## 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.ie/products/77281727-smartnavi-car-stereo-radio-optical-fiber-decoder-most-box-mercedes](https://www.desertcart.ie/products/77281727-smartnavi-car-stereo-radio-optical-fiber-decoder-most-box-mercedes)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-04*