BMW Audio Upgrade

Check out our BMW Sound System Upgrade Packages below!

Take your BMW audio system to new heights.

Choose your setup and commence your journey into extraordinary sound.

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Level 1 Package

Perfect for a clarity upgrade with an OEM look

£730

Duration of installation: 1 Day


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Purchase includes:

Audison Prima 2 way front speakers

10 sheets of Skinz sound proofing

BMW Tweeter Grills - Some vehicles need this (Normally between £50-£180 additional)

Professional pictures

Optional Extras:

Additional sound deadening - see options here

*Bass options that can be added to this package!

Audison Prima 10” active sub with 5 sheets of sound proofing - £998 inc installation

Hertz Mille Pro 10’’ sub - shallow or deep mounted in a traditional box powered by Audison Forza AF M1D with 10 sheets of sound proofing - £1750 inc installation

Hertz Mille Pro 10’’ sub - shallow or deep mounted in a custom box powered by Audison Forza AF M1D with 15 sheets of sound proofing - £2350 inc installation

Hertz Mille Legend 10’’ sub mounted in a custom box powered by Audison Forza AF M1D with 15 sheets of sound proofing - £2650 inc installation

Warranty:

All of our installs have lifetime warranty on our craftsmanship

Level 2 Package

Perfect option for those looking to do a bigger system in the future

£1,450

Duration of installation: 3 Days


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Purchase includes:

Audison Prima 2 way front speakers

Audison Prima 8″ under seat subwoofer – Passenger side

Audison Prima 8″ under seat subwoofer – Driver side

15 sheets of Skinz sound proofing

BMW Tweeter Grills - Some vehicles need this (Normally between £50-£180 additional)

Professional pictures

Optional Extras:

Additional sound deadening - see options here

*Bass options that can be added to this package!

Audison Prima 10” active sub with 5 sheets of sound proofing - £998 inc installation

Hertz Mille Pro 10’’ sub - shallow or deep mounted in a traditional box powered by Audison Forza AF M1D with 10 sheets of sound proofing - £1750 inc installation

Hertz Mille Pro 10’’ sub - shallow or deep mounted in a custom box powered by Audison Forza AF M1D with 15 sheets of sound proofing - £2350 inc installation

Hertz Mille Legend 10’’ sub mounted in a custom box powered by Audison Forza AF M1D with 15 sheets of sound proofing - £2650 inc installation

Warranty:

All of our installs have lifetime warranty on our craftsmanship

Level 3 package

Perfect for a volume, clarity and bass upgrade with an OEM look

£2,725

Duration of installation: 5 Days


Purchase includes:

Audison Prima 2 way front speakers

Audison Prima 8″ under seat subwoofer – Passenger side

Audison Prima 8″ under seat subwoofer – Driver side

17 sheets of Skinz sound proofing

Audison SR 5.600 V2 – Amplifier

Connection grade wiring

BMW Tweeter Grills - Some vehicles need this (Normally between £50-£180 additional)

Professional pictures of the install

Professional video of the install

Optional Extras:

Additional sound deadening - see options here

*Bass options that can be added to this package!

Audison Prima 10” active sub with 5 sheets of sound proofing - £998 inc installation

Hertz Mille Pro 10’’ sub - shallow or deep mounted in a traditional box powered by Audison Forza AF M1D with 10 sheets of sound proofing - £1750 inc installation

Hertz Mille Pro 10’’ sub - shallow or deep mounted in a custom box powered by Audison Forza AF M1D with 15 sheets of sound proofing - £2350 inc installation

Hertz Mille Legend 10’’ sub mounted in a custom box powered by Audison Forza AF M1D with 15 sheets of sound proofing - £2650 inc installation

Warranty:

All of our installs have lifetime warranty on our craftsmanship

Black frame for package

Purchase Includes:

Audison Prima 2 way front speakers

Audison Prima rear speakers

Audison Prima 8″ under seat subwoofer – Passenger side

Audison Prima 8″ under seat subwoofer – Driver side

40 sheets of Skinz sound proofing

Audison Forza AFM12.14 – Amplifier

Connection grade wiring

BMW Tweeter Grills - Some vehicles need this (Normally between £50-£180 additional)

Tuning & EQ

Professional pictures

Professional video of the install

Optional Extras:

 Audison Forza DRC AC: £145

 Audison bit B-Con: £245

Additional sound deadening - see options here

*Bass options that can be added to this package!

Audison Prima 10” active sub with 5 sheets of sound proofing - £998 inc installation

Hertz Mille Pro 10’’ sub - shallow or deep mounted in a traditional box powered by Audison Forza AF M1D with 10 sheets of sound proofing - £1750 inc installation

Hertz Mille Pro 10’’ sub - shallow or deep mounted in a custom box powered by Audison Forza AF M1D with 15 sheets of sound proofing - £2350 inc installation

Hertz Mille Legend 10’’ sub mounted in a custom box powered by Audison Forza AF M1D with 15 sheets of sound proofing - £2650 inc installation

Warranty:

All of our installs have lifetime warranty on our craftsmanship

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Level 4 most popular package

Perfect for OEM look surround sound with a custom tuning session

£4,100

Duration of installation: 8 Days


Level 5 package

Perfect surround sound system setup if you have Harmon Kardon

£4,795

Duration of installation: 9 Days


Purchase Includes:

Audison Prima 2 way front speakers

Audison Prima rear speakers

Audison Prima rear surround speakers

Audison Prima 8″ under seat subwoofer – Passenger side

Audison Prima 8″ under seat subwoofer – Driver side

50 sheets of Skinz sound proofing

Audison Forza AFM12.14 – Amplifier

Connection grade wiring

BMW Tweeter Grills - Some vehicles need this (Normally between £50-£180 additional)

Tuning & EQ

Professional pictures

Professional video of the install

Optional Extras:

Optical Module: £649

Audison Forza DRC AC: £145

Audison bit B-Con: £245

Additional sound deadening - see options here

*Bass options that can be added to this package!

Audison Prima 10” active sub with 5 sheets of sound proofing - £998 inc installation

Hertz Mille Pro 10’’ sub - shallow or deep mounted in a traditional box powered by Audison Forza AF M1D with 10 sheets of sound proofing - £1750 inc installation

Hertz Mille Pro 10’’ sub - shallow or deep mounted in a custom box powered by Audison Forza AF M1D with 15 sheets of sound proofing - £2350 inc installation

Hertz Mille Legend 10’’ sub mounted in a custom box powered by Audison Forza AF M1D with 15 sheets of sound proofing - £2650 inc installation

Warranty:

All of our installs have lifetime warranty on our craftsmanship

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Level 6 package

Perfect for a complete custom surround sound upgrade with a bespoke tuning session

£7,200

Duration of installation: 17 Days


Purchase Includes:

Audison Thesis tweeter

Audison Prima 4’’ mid range

Audison Prima 8″ under seat subwoofer – Passenger side

Audison Prima 8″ under seat subwoofer – Driver side

50 sheets of Skinz sound proofing

Custom A-pillars

Audison Prima rear speakers

Audison Forza AFM12.14 – Amplifier

Audison Forza AP F1D – Amplifier

Signal summing device

Connection Grade wiring

Hertz Mille Pro 10'' sub

Traditional Sub Box

Tuning & EQ

Professional pictures

Professional video of the install

Optional Extras:

Optical Module: £649

Audison Forza DRC AC: £145

Audison bit B-Con: £245

Additional sound deadening - see options here

Warranty:

All of our installs have lifetime warranty on our craftsmanship

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Purchase Includes:

Audison Thesis tweeter

Audison Voce 3’ mid range

Audison Prima 8″ under seat subwoofer – Passenger side

Audison Prima 8″ under seat subwoofer – Driver side

50 sheets of Skinz sound proofing

Custom A-pillars

Audison Prima rear speakers

Hertz mille power 4– Amplifier

Hertz mille power 5– Amplifier

Hertz mille power 4– Amplifier

Signal summing device

Audison Virtuoso Processor

Connection Grade wiring

Hertz Mille legend 10'' sub

Custom Sub Box

Tuning & EQ

Professional pictures

Professional video of the install

Optional Extras:

Optical Module: £649

Audison Forza DRC AC: £145

Audison bit B-Con: £245

Additional sound deadening - see options here

Warranty:

All of our installs have lifetime warranty on our craftsmanship

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Level 7 package

Perfect for those who have a relentless pursuit of excellence.

£11,900

Duration of installation: 30 Days


Level 8 package

Ideal for perfectionists who won't compromise on quality.

£18,950

Duration of installation: 33 Days


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Purchase Includes:

Audison Thesis tweeter

Audison Thesis 3’’ mid-range

Audison Prima 8″ under seat subwoofer – Passenger side

Audison Prima 8″ under seat subwoofer – Driver side

90 sheets of Skinz sound proofing

Custom A-pillars

Audison Prima rear speakers

Audison Voce 4ch Amp

Audison Voce 4ch Amp

Audison Voce 1ch Amp

Audison Voce 1ch Amp

Signal summing device

Audison Virtuoso Processor

Connection Grade wiring

Hertz Mille Legend 10'' sub

Hertz Mille Legend 10'' sub

Custom Sub Box x 2

Tuning & EQ

Professional pictures

Professional video of the install

Optional Extras:

Optical Module: £649

Audison Forza DRC AC: £145

Audison bit B-Con: £245

Additional sound deadening - see options here

Warranty:

All of our installs have lifetime warranty on our craftsmanship

Level 9 package

Designed for those with an unwavering commitment to excellence.

£46,300

Duration of installation: 40 Days


Purchase Includes:

Audison Thesis Tweeter

Audison Thesis Mid Range

Audison Thesis Mid Bass

Audison Prima 8″ under seat subwoofer – Passenger side

Audison Prima 8″ under seat subwoofer – Driver side

100 sheets of Skinz sound proofing

Custom A-pillars

Hertz Mille Legend rear speakers

Audison Voce 5ch Amp

Audison Thesis 4ch Amp

AUDISON THESIS VENTI (The £10k Amp)

Audio Control signal summing device

Audison Virtuoso Processor

Connection Grade wiring

Hertz Mille Legend 10'' sub

Hertz Mille Legend 10'' sub

Custom Sub Box x 2

Tuning & EQ

Professional pictures

Professional video of the install

Optional Extras:

Optical Module: £649

Audison Forza DRC AC: £145

Audison bit B-Con: £245

 Additional sound deadening - see options here

Warranty:

All of our installs have lifetime warranty on our craftsmanship

Purchase Includes:

3 Audison Thesis Venti (The £10k Amp)

2 Audison Thesis Uno

Audison Thesis Quattro

120 sheets of Skinz sound proofing

Audison Thesis Tweeters

Audison Thesis Mid Range

Audison Thesis Mid Bass

Audison Prima 8″ under seat subwoofer – Passenger side

Audison Prima 8″ under seat subwoofer – Driver side

Custom A-pillars

Audison Thesis rear speakers

Audio Control signal summing device

Audison Virtuoso Processor

Connection Grade wiring

Hertz Mille Legend 10'' sub

Hertz Mille Legend 10'' sub

Custom Sub Box x2

Tuning & EQ

Professional pictures

Professional video of the install

Optional Extras:

Optical Module: £649

Audison Forza DRC AC: £145

Audison bit B-Con: £245

 Additional sound deadening - see options here

Warranty:

All of our installs have lifetime warranty on our craftsmanship

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level 10 package

Ideal for individuals who refuse to accept anything less than perfection.

£124,178

Duration of installation: 60 Days


Harmon Kardon VS Audison

In the world of high-fidelity sound, the names Harman Kardon and Audison often feature prominently. Each brand has a unique history, approach to design, and set of offerings that satisfy different segments of the audio market. This comparison explores key differences and similarities between Harman Kardon and Audison to help you make an informed decision.

In this video we discuss and explain all there is to know about audio upgrades on BMWs, if you are looking to learn more and looking for some help on what system to choose, this video should help you massively.

BMW M5 Sound System Upgrade

Experience an unparalleled BMW M5 F90 sound system upgrade that maintains the factory look while featuring top-notch Audison components. In this video, we completely transform our BMW M5 F90 demo car's audio system, showcasing the remarkable enhancements without altering its sleek interior design.

As experts in high-end car audio for BMWs, the team at Cambridge Car Audio presents a detailed walkthrough of this extraordinary BMW audio upgrade process. Whether you're looking to enhance the sound quality of your BMW's speakers, stereo system, or even install a custom sound system with an amplifier and subwoofer, this video has you covered.

Not sure what system to choose?

This video is a great one for those of you who want to learn more about how we choose systems and may help you understand more about your BMW audio upgrade.

BMW M135i Sound System Upgrade

BMW M135i sound system upgrade by Cambridge Car Audio! Watch this premium car audio installation with BMW speaker upgrade, better bass, crystal-clear sound & expert audio tuning in the UK.

In this video, our expert technicians at Cambridge Car Audio take on a full BMW M135i audio upgrade, featuring high-performance component speakers, custom subwoofer integration, and precise tuning for immersive sound. Whether you're into car audio upgrades, BMW stereo enhancements, or want to learn how we transform stock systems into audiophile-grade experiences—this one's for you.

Demo car available

Experience the ultimate sound system before you buy.

At Cambridge Car Audio, we understand that hearing is believing. That’s why we’ve built a dedicated demo car – a stunning BMW M5 – equipped with one of our signature high-end audio systems.

This vehicle is available for you to sit in, listen to, and truly experience the difference that a professionally installed sound system can make. Whether you're considering a full audio upgrade or just want to explore the options, this is the perfect way to hear what’s possible.

Come and experience it for yourself – no guesswork, just sound.

Trusted by celebrities

Frequently asked questions

  • Our packages have been designed to make the process as easy a possible for you. If you are stuck on what is best, just call us or visit us so we can guide you. We are here to help.

  • Installing aftermarket speakers can be a great way to improve sound quality, loudness, clarity and increase the frequency spectrum or fullness of the sound. No manufacture system like HK, B&O or Bose would ever be able to compete with the products we use. the reason is, they have become so mass market and in turn have to fit a price point for brands like BMW, Audi and Mercedes.

  • Subwoofers add bass and depth to your stereo's sound. And they can also add to a system's performance in a variety of ways. A quality subwoofer will add depth and realism to your music that you would otherwise miss out on with a factory car stereo system. The old days of filling your boot with massive subs has gone, we focus on more of an oem look with incredible sound.

  • Every install will vary massively on the level and amount of equipment that is being used plus the level of fabrication that is involved. We have made this simple by adding an estimated time scale onto each package that we have designed. We do strongly believe in, do the job once and do the job properly. Perfection can’t be rushed.

  • YES! With the EV market massively growing, we are carrying out more and more sound system upgrades to EV cars. The most popular question we get asked about EV Car Audio is ‘will the range of my EV be affected by a new sound system’. We have done testing on this and have designed systems using the latest technology in car audio with extremely low draw which is designed to not impact the range you have on your EV.

    Electric car audio upgrades are fast becoming our future and we are one step ahead of the game. With one of our demo vehicles being fully electric. Sound system upgrades for electric cars is no easy thing to do however our team have experience and knowledge on this so you know your EV is in safe hands.

  • The packages we have designed are fantastic BUT it is so hard to gauge what system is best by looking online, that’s why we always recommend you come to meet with our team so you can experience every detail. We give a full workshop tour of our 11,000sqft facility so you know that your car is in safe hands, then we listen to your car, then you listen to our demo car, then we sit down and go into every detail of the system and can tailor something for you to get you the best car audio system.

  • Tuning a car is an artform in itself. After the install is complete, we use an RTA machine to asses if there is any noise cancellation and to get a better understanding of what the system is doing. From there we use 5 microphones as a part of the Bit Tune kit to give a precise time alignment for the optimum listening position. Once the Bit Tune kit has done it’s alignment and created an EQ Curve, we then sit in the car and fine tune the system by ear. On each system where we have a DSP in the system, we take a few songs from our client and then fine tune to those songs.

  • Not to worry, your car an still be upgraded by us. Most of our clients travel between 2-6 hours on average for installations of audio upgrades. We have many clients from areas in London, Birmingham and even in areas in Scotland. We have found that our clients don’t mind traveling for amazing craftsmanship and work. It is our job to make the process as easy as possible for you.

    We have Hire Cars available or alternatively we have transport firms that we have used and trust that can arrange collection and delivery for you!

  • We have many international clients that wish to have their vehicles upgraded by us. If you are based in Dubai, Europe or the USA, we offer plans to have the vehicle delivered and collected from ourselves. We normally work with this business:

    Ship My Car

    info@shipmycar.co.uk

    +(44) 1908 887 917

    International clients of ours in the past have either used this business to transport their cars, or alternatively used their own transport. If you are looking to have your vehicle upgraded with us and you are based internationally, please mention this to us in your initial enquiry and we will assist you with making everything happen.

Can’t find what you’re looking for?

Let us help you find what you need.

Lifetime warranty

Your install is covered by a lifetime warranty on our craftsmanship

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Secure facility

Your car is secure in our 11,000 sq.ft. workshop

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Technology

3D printing, CNC machining and RTA tuning to create the best sound

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Hire cars

Keeping you mobile while your car has it’s spa treatment

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Family business

Our amazing team will make sure you’ll get the best experience

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Awesome coffee

We’ll make sure you enjoy the best coffee while we take care of your car

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“Just listening to this audio system in here sounds unreal. To have this upgrade is the ultimate. It’s perfect.”

— Shmee150