BMW X7 G07 2020

BMW 2020 – S676 HiFi Sound System Upgrade

We use a solution that has been developed and produced in Germany by Audiotec Fischer, the world’s leading car-audio manufacturer.

Original Setup:

– S676 Hifi sound system factory amplifier,
– 3-way splits in the front: 1″ tweeter, 4″ midrange, 8″ underseat woofer,
– 2-way coaxial system in the rear: 4″ speaker

Mediocre sound quality, not enough bass, low volume output

New Setup:

MATCH UP 7DSP – PnP DSP amplifier
STEG BM45C – Direct fit speakers in the front
STEG BM8 – Drop-in underseat subwoofers
BMW 2020 special adapter kit

A new BMW sound system in all models from 2020 up, whether it is the basic version or the S676 Hifi, it is no longer upgradeable with the conventional Plug ‘n Play solution MATCH UP 7BMW.  That is because the new models are made the way which is commonly called as the RAM setup, (Radio-Amplifier Module). It means the OEM Amplifier is no longer removable as the head unit will not function without it.

Fortunately, we have a great solution available for these sound systems and the best part is, it still all remains Plug and Play! We will keep your OEM amplifier in place, add a 7 channel MATCH amplifier to the system and connect it all with a special harness. This way we will be able to amplify and tune-up all 7 channels in your BMW vehicle. That is both the front and rear channels, the 2 underseat subwoofers and the centre channel. Which is exactly what we did on this brand new BMW X7 2020.

The front speakers were replaced with STEG, direct-fit component 4″ / 1″ aftermarket speakers. STEG is a high-quality Italian brand that has great components with a very flat frequency response to begging with. They sound very natural and are pleasant to the ear, perfect for everyday use.

The same approach was used in the underseat subwoofers which we upgraded with 8″ 200W STEG drivers. They have an extraordinary bass response with no distorting all the way up to the highest volumes.

All the parts we used have been made to fit BMW without any need to drill or cut to the vehicle.


This setup is suitable for all BMW models from 2020 up with both the basic and the S676 HiFi systems. Please contact us to check the compatibility with your vehicle.


Dynamic sound, clear tones and a great bass frequency response.

The stage has been precisely tuned up with the sound image oriented to the driver’s seat. That way it’s a much more enjoyable experience to drive the car around.

Installation time: 1 day
Total cost: $3690

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Installation Photos

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