M&P USA Universal Fiber Optic Loop Bypass Loop Adapter Compatible with 2006-2011 BMW, Mercedes & More

Rated 4.95 out of 5 based on 113 customer ratings
(113 customer reviews)

$15.89

& Free Shipping

Our fiber optic loop features a unique, universal, female style connector that ensures proper fitment!  You may have noticed that our bypass loop looks different than other bypass loops out there!  We modified it to universally fit the connector for every component in your vehicle including, but not limited to: Satellite receivers, Power amplifiers, TCUs (Bluetooth) module, MULF units, CD changers, COM Boxes, and MMI Modules! Compatible with 2006-2011 BMW, Mercedes, and any vehicle that utilizers the “MOST” fiber optic system.

Free shipping on orders over $50!

  • No-Risk Money Back Guarantee!
  • No Hassle Refunds
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  • Our UNIVERSAL Female Fiber Optic Loop is Plug & Play & fits ALL BMW and Mercedes fiber optic multimedia component connectors. (Other seller’s standard adapters WILL NOT fit many multimedia components without modification)
  • Compatible With: BMW, Mercedes, and Many More – SCROLL DOWN for more info
  • Proudly made AND supported in the USA! We are here to help you diagnose your vehicle.  Covered by our LIFETIME Warranty Replacement Guarantee. 
  • PLEASE Contact us for help with the product, or your vehicle’s SOS light or Audio Issue!
  • Lifetime warranty is included on all of our products!

BMW – Checking Vehicle Compatibility:

BMW: Our fiber optic loop is compatible with all BMW models from 2006-2011. (keep reading below for newer models) In BMWs, components with fiber-optic connections are identified by their green optical cables. The image on the left shows a typical component layout with the male MOST connector cable disconnected from a component. In BMWs, multimedia components are typically located in the trunk near the driver-side tail light, or in the bottom center area underneath the cover panel. Components and locations will vary based on your make, model and vehicle options (we will help you find them as needed).

2012+ BMW models utilize a consolidated communication module (com box) replacing the older, separate components used in previous years. Our fiber optic bypass is compatible for testing purposes, however, 2012+ BMWs will likely require further troubleshooting (we are happy to help).

Mercedes – Checking Vehicle Compatibility:

Mercedes: Our fiber optic loop is compatible with most Mercedes models from 2004-2011. Mercedes vehicles generally have more components connected to the fiber-optic network than BMWs. In Mercedes, components with fiber-optic connections generally can be identified by their orange optical cables.

The image on the left shows a typical Mercedes component layout. In Mercedes, vehicles’ multimedia components are typically located in the trunk near the driver side tail light, or in the bottom center area underneath the carpeting panel. Component locations will vary based on make and model, we will help you find them as needed. Once the component you wish to test is located, our fiber optic bypass will fit .

Other Vehicle Manufacturers – Checking Vehicle Compatibility:

Other Vehicles: Countless other vehicle manufacturers utilize MOST (Media Oriented Systems Transport) technology. To check compatibility simply locate one of the components in the trunk area and look for a fiber-optic cable connection; they are typically either orange or green cables. Once located, disconnect the connector from the component to check and see if it looks like a male MOST connector (reference the two male plug examples in the image on the left). Either style of male optical connectors loop shown in the photo are compatible with our fiber optic loop.

Note: There are additional styles of fiber-optic connectors out there, as long as the spacing and diameter of the two on the connector match, our loop will work. If you’re not sure, you can always order one of our fiber optic bypass units, give it a try, and return it if it does not fit.. We promise, we wont be offended 🙂

Weight 1 oz
Dimensions 4 × 6 × 1 in

113 reviews for M&P USA Universal Fiber Optic Loop Bypass Loop Adapter Compatible with 2006-2011 BMW, Mercedes & More

5 Star

96.46 %
109 review(s)

4 Star

1.77 %
2 review(s)

3 Star

1.77 %
2 review(s)

2 Star

0 %
0 review(s)

1 Star

0 %
0 review(s)

Reviewed by 113 customer(s)

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    Gumer Gonzalez

    easy and to the point instalation

    after dealing with audio cutting in and out for over a year, this simple quick installation brought my audio back. dont hesitate to try it before you start replacing modules

    February 12, 2026
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    Mynor Andrew

    razonable precio

    es de mucha utilidad y arregla facilmente el radio de tu carro

    January 17, 2026
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    one direction

    E60 bmw

    Works perfectly for e60 bmw

    January 14, 2026
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    Allan G.

    Very handy fixed my car

    Great loop back tool fixed my radio

    December 23, 2025
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    Michael D.

    Great Product !

    Great product ! Very well made with high quality materials, this product allowed me to bypass my defective voice command and bring back full operation of my sound system !

    November 27, 2025
    Verified Review

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    Robert F. Wodarski

    A must have for German car owners

    Exactly what I needed for my 7 series! I bought two just to have an extra one around, turned out 2 of the3 modules were bad so I needed both. I have my radio and chimes back!

    November 26, 2025
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    blue

    Cheap bypass

    Works for c300

    November 2, 2025
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    SB

    Perfect

    1. I was able to use this to diagnose a problem fault in the radio system on a 2007 BMW 335i. Using this I was able to isolate the failed component (XM Radio module). 2. This is now used as a permanent bypass as I have no current intention to replace the XM module.

    November 1, 2025
    Verified Review

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    Golf Girl

    Absolutely the best help I have recieved

    I have a 2007 BMW 650i convertible. We had taken it in in 2021 for a battery drain at a local shop. They were not much help. Not sure when the sos light started. But since then we have but it on a trickle charger every time we park it. As we don’t drive it a lot has 97,000 miles.Lately the SOS light, high drain and Radio Mode were starting to really bother me. After researching I found this product. I bought here because of what I read about customer support. I tried it on my own and failed. Adam responded to me through text sending photos and instructions to test 3 units not just the SAT that I tried. He also sent a video on the third bid as it was under my rear headrest and they were tricky to get out. As it turned out the Bluetooth was the problem. I actually preferred to replace it. Sent Adam a photo of the label which he matched to a used on on EBay about $30 total. Came two day later, installed and I now have my Bluetooth paired with my iPhone and no warnings on my screen.I am saving this part in my spare tire too area. May need up still needing it one day and Adam’s help was priceless! I don’t write to many reviews but this was way above great customer service.

    October 26, 2025
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    Lisa Gardner

    BMW 528xi 2009

    Super easy set up on my 2009 528xi. Works perfectly and although it didn’t fix the sos malfunction code my car aux and sat radio work great.

    October 14, 2025
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