Prestige & Supercar Audio · Cardiff
Ferrari California Radio Repair Cardiff — Kenwood DMX8021DABS Multimedia Upgrade
A dead factory head unit, half a Ferrari dashboard on the bench, and a full multimedia rebuild — done properly, in Cardiff.
Waz — 35+ years car audio experience, B&B Audioconcepts Cardiff
| Vehicle: Ferrari California |
Product Fitted: Kenwood DMX8021DABS Multimedia Receiver |
Location: Cardiff, South Wales |
Written by Waz, B&B Audioconcepts · Published 19 September 2026 · Last updated 19 September 2026
Not every job that comes through the door at B&B Audioconcepts is a full sound system rebuild. Sometimes it’s something that sounds simple on paper — “the radio’s stopped working” — and this Ferrari California radio repair in Cardiff was exactly that kind of job, right up until we opened the dashboard. The factory head unit had died completely: no power, no screen, nothing. A straight swap should have been simple. On a Ferrari, nothing about the dash is simple, and getting it wrong risks far more than a blown fuse.
The short answer for anyone asking the same question: yes, B&B Audioconcepts repairs and upgrades factory head units in Ferraris and other prestige cars, and yes, it can be done without cutting a single factory wire or losing a single steering-wheel control. Here’s exactly how this one went.

Is your own car radio or infotainment screen playing up? See our car radio and head unit repair service in Cardiff. We diagnose the fault first, and every repair comes with a 3-month warranty.
A “Simple” Radio Fault That Wasn’t So Simple
The original Ferrari-branded head unit had gone completely blank — no backlight, no response, no signs of life at all. On most cars that’s a five-minute swap. On a Ferrari California, the multimedia unit sits behind a dashboard designed for a Ferrari technician with Ferrari tools, not a straightforward pull-and-replace. Getting proper access meant carefully removing trim panels, the steering wheel surround and sections of the dash itself — all without marking soft-touch leather, snapping thirteen-year-old plastic clips, or disturbing wiring looms that were never designed to be repeatedly unplugged.
Once we were in, the diagnosis was straightforward: the original unit had failed internally and wasn’t economically repairable. The bigger decision was what to replace it with — something that would look and feel at home in a Ferrari interior, work reliably, and not force the owner to give up any factory function to get it.
The Build, Step by Step
Four stages of the same job, from fault to finished fit — each photo below is exactly what it shows, nothing staged.
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1
The Fault — the original Ferrari head unit, completely dead, no power and no screen. |
2
Full Access — doors and trim opened up at the Cardiff workshop to safely reach the multimedia unit. |
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3
Mid-Rebuild — wiring isolated and tested, steering wheel protected, before the new unit goes in. |
4
New Heart — Kenwood DMX8021DABS fitted, Apple CarPlay live, steering controls retained. |
Fitting the Kenwood DMX8021DABS — Without Losing a Single Factory Feature
We chose the Kenwood DMX8021DABS for this Ferrari California because it gave the owner everything the original unit couldn’t: wired Apple CarPlay and Android Auto, built-in DAB digital radio, and a screen sharp enough to feel like it belongs in a modern supercar rather than bolted in as an afterthought. Just as important as what it adds is what it keeps — using the correct steering-wheel control interface, every button on the Ferrari’s own steering wheel still operates the new unit exactly as it did the old one. No factory function was lost, and no wiring was cut to make it fit.
| Multimedia Receiver | Kenwood DMX8021DABS |
| Connectivity | Wired Apple CarPlay & Android Auto |
| Radio | Built-in DAB digital radio |
| Controls Retained | Factory Ferrari steering wheel audio controls |
The result
From a blank screen to a fully modern Apple CarPlay & DAB system
No wires cut. No factory function lost. Steering controls retained.
Finished Result
Job done, dash reassembled without a mark, and the Ferrari California left Cardiff sounding — and working — better than the day it left the factory.

Why Cardiff’s Ferrari & Supercar Owners Choose B&B Audioconcepts
A main dealer will happily quote you for a brand-new factory unit at a brand-new-car price. A generic fitter will happily cut into a Ferrari’s wiring loom to save themselves twenty minutes. Waz and the team at B&B Audioconcepts do neither — 35+ years of hands-on car audio experience means knowing when a careful repair and upgrade beats a four-figure factory replacement, and knowing exactly how to access a prestige dashboard without leaving a mark. That’s the difference between a fitter and a specialist.
B&B Audioconcepts is based at Unit C1, West Point Industrial Estate, Penarth Road, Cardiff CF11 8JQ, and works on prestige and supercar audio from across South Wales — Cardiff, Penarth, Barry, Newport, Pontypridd, Bridgend and the Vale of Glamorgan all regularly bring exotic and high-value vehicles to the workshop for exactly this kind of careful, no-shortcuts work.
Frequently Asked Questions
Can you repair a Ferrari’s factory head unit?
Yes. We diagnose factory head units before recommending replacement, and repair them where it’s economically sensible. On this Ferrari California the original unit had failed beyond repair, so we upgraded to a Kenwood DMX8021DABS instead, retaining every factory control in the process.
Will fitting a new head unit affect my Ferrari’s warranty or resale value?
No, when it’s done correctly. We use manufacturer-correct interfaces and never cut into the factory wiring loom, so the work is fully reversible and doesn’t affect the car’s electrical warranty or its value to a future buyer.
Will I keep my steering wheel audio controls after the upgrade?
Yes. Using the correct steering-wheel control interface for the vehicle, every factory button continues to operate the new unit exactly as it did before — this Ferrari California kept full steering wheel control of the new Kenwood DMX8021DABS.
Can I get Apple CarPlay in a Ferrari California?
Yes. A Ferrari California doesn’t come with factory Apple CarPlay, but a correctly specified aftermarket multimedia receiver like the Kenwood DMX8021DABS adds it cleanly, without cutting wiring or losing factory functions.
How long does a head unit replacement take on a car like this?
It depends on how much of the dashboard needs to come out to gain safe access. On this Ferrari California, allowing for careful trim removal and reassembly, the job was completed within a day at our Cardiff workshop.
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From factory head unit repairs to full audio rebuilds — done properly, without cutting a single wire.
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View All B&B Audioconcepts Builds →
| Address | Unit C1, West Point Industrial Estate, Penarth Road, Cardiff CF11 8JQ |
| Phone | 029 2070 7275 |
| Website | audioconcepts.co.uk |







