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Overnight and 2-day shipping is available for in-stock US orders by special request.  Please message us for the pricing and details before ordering if you need this rush service. 

In support of our US military service members overseas, we ship to APO addresses. 

Note: In the wake of COVID-19, international shipping time is slower than usual.  Please messages us for an up-to-date shipping time.

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1 Year International Warranty.  30-Days Return Policy.

MOST Fiber Optic Amp Interface for BMW E90, E91, E92, E93, E60, E61, E81, E82, E83, E84, E70, E87, E88, E89

SKU: MOST-BM

In stock in California and ready to ship!

Express shipping time for US orders is only 1 to 3 business days.

In stock
SKU
MOST-BM
Now Only $99.99 Regular Price $149.99
Accepted Payments
Accepted Payments

The MOST-BM supports any aftermarket radio and the following BMW models: E90, E91, E92, E93, E60, E61, E81, E82, E83, E84, E70, E87, E88, E89

 

BMW E90 3-series sedan, (2006 - 2011)
325i, xi
328i, xi
330i, xi
335i, xi,
M3

BMW E91 3-series wagon (2006 - 2011)
328i

BMW E92 3-series coupe (2007 - 2011)
328i, xi
335i, xi
M3

BMW E93 3-series convertible
328i
335i
M3

BMW E60 5-series sedan (2004 - 2010)
525i, xi
530i, xi
545i, xi
550i, xi
M5

BMW E61 5-series wagon (2004 - 2010)
530i, xi

BMW E82 1-series coupe (2008 - 2012)
128i
135i
1M

BMW E83 X3 SAV (2004 - 2010)
2.5i
3.0i

BMW E84 X1

BMW E70 X5 SAV (2006 - 2012)
3.0i
4.8i

BMW E87 1-series convertible (2008 - 2011)
128i
135i

BMW E89 Z4

 

Supports both Logic 7 and Harmon Kardon

The AVIN MOST-BM Fiber Optic Amp Interface allows the BMW factory amplifier, the output from all speakers including subwoofer, and premium sound quality to be retained when installing ANY aftermarket radio.  Your aftermarket radio must have the REMOTE ON feature to tell the factory amp to power on for sound output.

When installing the MOST-BM into your BMW you must make sure that the fiber optic signal loop is not broken.  If you have other devices which can include original CD Changer, satellite radio, and telephone module they must stay connected so the fiber optic signal loop is consistent.  If you would like to remove the CD changer, satellite radio or telephone module you can but you will need our MOST Fiber Optic Bypass Loop Adapter Plug OR MOST Fiber Optic 5 Meters Cable our to make a direct connection from the MOST interface to the factory M.O.S.T. (Media Oriented Systems Transport) amplifier.

To identify if you have a factory-amplified audio system, you can check the vehicle in a number of ways. Some vehicles will have clear markings on the speaker grills indicating the presence of an upgraded audio system. You can also check with the original order notes/invoice from when the car was purchased from the factory, the upgraded sound system with an amplifier would show on the options list. If unsure, you can call your local dealer with your vehicles chassis number and ask them to check if the vehicle was manufactured with an amplified audio system.

 For the BMW E90 series, you can check the top of your dashboard to see if you have the center speaker there.  If you do then you have the Logic 7 speaker system.

BMW E90 Logic 7 Center speaker

 

 

Frequently asked questions:

Q.  Can I return this for a refund if I do not like it?

A:  NO.  We warranty the product for one year.  If there are any problems with it, we will replace it with a new one for you.

Q.  Why are there only TWO RCA inputs? 

A:  It only supports Stereo input from your front Left and front Right RCA audio output.

Q.   If it is only using TWO RCA audio cable how will get sound from all of my speakers?

A:  The MOST interface will convert the TWO RCA audio signal into a fiber optic signal your factory amplifier can understand.  Your Harmon Kardon amplifier will distribute sound to all of your speakers including your subwoofer.

Q.  Can I control fade and balance after this is installed?

A:  You can control only LEFT RIGHT balance since it is only using those two RCA audio cables.  No fading from front to back.

Q.  Does this support steering wheel button controls?

A:  This does not add or remove steering wheel button control.  It only has one function and that is to convert RCA audio into a fiber optic signal the factory amplifier can understand.

 

 

 


 

 

 DIY Install Video

FREE Shipping on orders over $350 to USA, Germany, Canada, UK, France, Spain, Denmark, Austria, Ireland, Belgium, Italy, Portugal, Thailand, Singapore, Malaysia, Mexico, Puerto Rico 

Overnight and 2-day shipping is available for in-stock US orders by special request.  Please message us for the pricing and details before ordering if you need this rush service. 

In support of our US military service members overseas, we ship to APO addresses. 

Note: In the wake of COVID-19, international shipping time is slower than usual.  Please messages us for an up-to-date shipping time.

Low Flat Rate Express International Shipping for countries not listed above

Chat with us LIVE now for more info about our products.

1 Year International Warranty.  30-Days Return Policy.

AVIN LLC is an aftermarket parts supplier and its product offerings are all aftermarket parts.  AVIN LLC is not associated or otherwise affiliated with BMW, Mercedes, Volkswagen, Apple, Google, or any other OEM, nor are its products endorsed, sponsored, or licensed by them or their affiliates.

All OEM, BMW, Mercedes, Volkswagen, Apple, Google, trademarks™, logos, company names, are the registered marks of their respective holders. AVIN LLC’s products are not sourced by BMW, Mercedes, Volkswagen, Apple, Google, or any other OEM. Any of their respective trademarks or logos shown on any images found in AVIN LLC’s marketing materials are for illustrative purposes only to help a customer determine whether a specific aftermarket product is compatible with or could otherwise serve as a replacement part for a specific model vehicle.  Products bearing OEM’s trademarks or logos must be purchased from the respective OEM or one of its affiliates.  Android is a trademark of Google LLC.