M&P USA Universal Fiber Optic Loop Bypass Loop Adapter Compatible with BMW, Mercedes & More
Condition: New
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- – 4-month term
- – No impact on credit
- – Instant approval decision
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Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
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30-day returns
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 10 left in stock, order soon!
Arrives
Monday, Feb 2
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Features
- 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
- *USA* Product Support via TEXT or VOICE - 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!
Compatible Devices: TCU, MULF, Amplifier, Satellite Receiver, CCC, CIC
Connector Type: MOST Female
Color: Orange
Item dimensions L x W x H: 3 x 5 x 0.5 inches
Brand: M&P USA
Product Dimensions: 3 x 5 x 0.5 inches
Item Weight: 0.247 ounces
Item model number: 1cb80526-e151-4a5f-8fdf-048c0e4ba5b2
Date First Available: March 5, 2019
Manufacturer: M&P USA
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Feb 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Immediately fixed my issue on my E60 M5. My audio stopped working, as well as Bluetooth, plus an SOS malfunction. I found a guide on troubleshooting MOST bus issues. I removed part of the liner in the left side of the trunk to expose some modules. I checked the MOST connectors on the Logic 7 Amplifier, SAT module, and TCU. There was a red light from the amp and SAT, but not the TCU. This indicates the fault is likely with the SAT module. I ordered this (after trying a different one that didn't fit), and the second I plugged it in my audio kicked on. SOS warning went away and I was able to connect to Bluetooth. Luckily, I don't use SiriusXM so I don't need the SAT module and can leave the bypass plugged in. Well this seller knows their stuff and included a zip tie with the connector. A small gesture and little detail, but it was nice to see the recognition of the issue. This is the one to buy if you need a MOST bypass adapter. Thanks!
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Reviewed in the United States on September 5, 2025 by Anthony Anthony
Easy fix on my 2007 BMW 328i wagon (E90 E91 E92 generation) for an SOS fault which causes the audio to not work. Used this to bypass the dead Sirius XM radio module in the trunk. Open the driver side hatch in the trunk, pull out the connector on the back of the Sirius XM module and pop this into the connector to link the two connector terminals (one connector terminal is lit up and the other is not lit). Done! 2 minute job if you know where to go. Even came with a zip tie to secure the loose connector now that it's no longer plugged into the back of the Sirius XM module. Highly recommend.
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Reviewed in the United States on September 4, 2025 by Gregory Chu
Works perfectly for e60 bmw
Reviewed in the United States on January 14, 2026 by one direction
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 !
Reviewed in the United States on November 27, 2025 by Michael D. Campion
If your reading this you have done extensive research on how to get your audio system going in your bmw. I have a 2008 BMW 750li. The satellite unit when bad causing the whole "I" drive system to go down. The system operates via fiber optic cable. this loop bypasses the bad unit thereby give you audio again. The loop takes 10 seconds to install but to get to that point takes 10 mins. You must pry the inside trunk panel on the driver side to expose the satellite unit. have a small zip tie ready to secure the loop in place to the original fiber loop. While your in there take a pic of the Bluetooth module if your car is equipped with one. you will need that to pair your phone to the car. This unite works!!
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Reviewed in the United States on December 10, 2022 by John Drake
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.
Reviewed in the United States on October 14, 2025 by Lisa Gardner
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.
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Reviewed in the United States on October 26, 2025 by Golf Girl
Great loop back tool fixed my radio
Reviewed in the United States on December 23, 2025 by Lewis