Skip to content
, home

Your car: not set

Mercedes-Benz S-Class W221 Fibre Optic MOST25 Decoder Box for Aftermarket Stereos | ACFOBMS01, image 1 of 4
Mercedes-Benz S-Class W221 Fibre Optic MOST25 Decoder Box for Aftermarket Stereos | ACFOBMS01, image 2 of 4
Mercedes-Benz S-Class W221 Fibre Optic MOST25 Decoder Box for Aftermarket Stereos | ACFOBMS01, image 3 of 4
Mercedes-Benz S-Class W221 Fibre Optic MOST25 Decoder Box for Aftermarket Stereos | ACFOBMS01, image 4 of 4

Image 1 of 4.

Mercedes-Benz S-Class W221 Fibre Optic MOST25 Decoder Box for Aftermarket Stereos

SKU: ACFOBMS01

£109.99

Price includes VAT · Free UK delivery

Klarna is available on baskets of £150 or more.

Check if this fits your car

Only 2 left
1
  • Navway, UK car stereo specialists since 2014
  • 5,000+ customers
  • UK support Mon–Fri

SKU: ACFOBMS01

Key specifications

Network
Fiber Optic MOST25

Functions

  • Built-in amplifier

What you need to fit this

1 · In the box

  • 1 x Decoder Box
  • 1 x Power Supply Cable
  • 1 x Fibre Optic Loop Male & Female Connector
  • 1 x Fibre Optic Loop Female Connector
  • 1 x Adapter
  • 1 x User Manual

The XTRONS ACFOBMS01 is a MOST25 fibre optic decoder box for the Mercedes-Benz S-Class W221 (2005-2013). It keeps the factory amplifier and fibre optic network working after you fit an aftermarket stereo, so all the speakers still play.

  • Keeps the W221's factory amplifier system after a stereo upgrade
  • Keeps the fibre optic network running
  • Plug and play, with the connectors and adapter included

Keeps the factory amplifier working

In the S-Class W221 the factory amplifier is linked by a fibre optic network. Removing the original stereo breaks that loop, which can leave the speakers silent. This decoder box keeps the factory amplifier system and fibre optic network working with an aftermarket stereo, so the sound still comes through every speaker.

Fitting is plug and play. A power supply cable, fibre optic loop connectors (one male and female, one female) and an adapter come with it.

What's in the box

  • 1 x Decoder Box
  • 1 x Power Supply Cable
  • 1 x Fibre Optic Loop Male & Female Connector
  • 1 x Fibre Optic Loop Female Connector
  • 1 x Adapter
  • 1 x User Manual

Full specification from XTRONS

XTRONS's own pages for this product, as the manufacturer publishes them. Open any of them at full size to zoom in.

  1. Mercedes-Benz S-Class W221 Fibre Optic MOST25 Decoder Box for Aftermarket Stereos | ACFOBMS01: XTRONS specification poster 1 of 1View full size (opens in a new tab)