Audi · Radio Codes

Est. 24 Hours

Audi A4 Radio Codes

Name: Audi A4 Radio Codes
Brand: Audi
SKU: audi-a4-radio-codes
Price: 24.99 GBP
Availability: InStock
Rating: 4.5 (22227 reviews)

Audi A4 radio code by serial number. Covers all Concert, Chorus, Symphony, and navigation units fitted across A4 B5, B6, B7, and B8. Enter your AUZ serial from the unit label.

Enter your serial number

Over 1 million codes delivered worldwide.

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22,227 reviews on

TrustScore 4.5 | 22,227 reviews

Step 1 of 3

How to find your Audi serial number

The guide below will show you exactly where to find your Audi radio serial number.

Audi Chorus / Concert

Remove the radio to find your serial

Insert the four radio release keys into the corner holes of the fascia and apply gentle outward pressure. The unit slides forward. You do not need to disconnect any wires.

The serial is on the label on the back of the casing, starts with AUZ, 14 characters (for example, AUZ2Z3C1420538).

Audi Symphony

Remove the radio to find your serial

Insert the four release keys into the corner holes and slide the unit forward. The serial is on the label on the back of the casing, starts with AUZ, 14 characters (for example, AUZ1Z4H7755256).

Audi RNS-E Navigation

Find your serial on screen

You do not need to remove the unit. Power it on and look at the bottom of the display, the serial number appears along the bottom edge of the screen.

It starts with AUZ, is 14 characters long, and the sixth character is always 7 (for example, AUZBZ7H7145296).

What your Audi serial looks like

AUZ-Series AUZ1Z1F6412082

AUZ-Series AUZBZ7E0902434

Can't find it? Contact us. We'll help you locate your serial before you pay a penny.

Why choose us

The World's Leading Audi Radio Code Service

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OnlineRadioCodes.co.uk is the world's leading supplier of car radio codes, with over 1 million codes delivered since 2015. Our radio experts are on hand to help you every day.

Instant delivery

Most codes appear on screen the moment payment clears. For brands that require manual lookup, our team typically delivers within the hour during business hours.

Money back guarantee

If your code does not work, we refund you in full. No questions, no hassle. We are one of very few radio code companies to back every order with a complete money back guarantee.

Lifetime retrieval

Misplace your code weeks or even years from now? Just get in touch and we will resend it free of charge, every time. One purchase gives you access for life.

FAQ

Frequently asked questions

Why is my Audi A4 radio asking for a code?

Power was cut to the unit, a flat battery or a battery change being the usual cause, and the anti-theft lock activated. Enter the correct code once and it will not ask again until the next time power is lost.

Which radios were fitted to the A4?

Mostly the Concert, Symphony and Chorus units, plus the RNS-E navigation on higher specs. All carry a 14-character AUZ serial and all are covered. The RNS-E can also show its serial on screen, which saves removing it. If you have another Audi, our main Audi radio code page lists every model we cover.

Where is the serial on an A4 radio?

On the label on the casing, a 14-character number starting AUZ. Slide the unit out with release keys to read it, no wires need to be disconnected. RNS-E owners can use the on-screen route instead.

How do I enter the code on an A4?

With the ignition on the display shows SAFE, then 1000. Set each digit with the preset buttons, then confirm. If the radio shows 2 SAFE it has had too many wrong attempts, leave it switched on for about an hour and it will accept entries again.

I have had the car years and never needed a code before. Why now?

The code only comes into play when the radio loses power. Many owners never see it until the first battery change. Nothing has gone wrong with the unit, it just needs its code once.

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Don't just take our word for it

See all reviews on Trustpilot

3 hours ago

The radio code was fairly cheap to get, but...

The radio code was fairly cheap to get, and I got it really quick.I deducted one star because during the whole process I have received EIGHT emails!

Attila Gobor · SI

11 hours ago

worked instantly was a bit dearer than…

worked instantly was a bit dearer than other sites but got what I paid for unlike 1 other that took money and gave no code trust this one

Robert Tanner · GB

12 hours ago

Easy to navigate website

Easy to navigate website, straight forward, customer service is very helpful.

Josh S · US

13 hours ago

Mixed reveiw

Not had the best experience due to the lack of communication. I didn’t receive the code by email and had to call them for it, and it took over 48 hours befor…

Tom · GB

18 hours ago

Servizio eccellente

Giuseppe Pellino · IT

18 hours ago

It was great i miss spellt the serial…

It was great i miss spellt the serial number and they still got me the right code

Swaggcorn · RO

19 hours ago

Fantastic service and fast response

Fantastic service and fast responseI even made a mistake an gave the wrong serial number and they helped me with a brand new codeWould definitely use this se…

Dan Cabby · GB

21 hours ago

I was sceptical - however it does work!

I have to be honest, I was sceptical this would work. My daughter’s car radio hasn’t worked for years since the battery was changed. The service was very eas…

A R · GB

23 hours ago

Bin sehr zufrieden

Ging alles sehr sehr schnell, paar Minuten und der Code war da. Bin sehr sehr zufrieden mit der blitzschnellen Rückkehr. 23€ sind auch ein Fairer Preis.Empfe…

Ahmet · DE · VW

23 hours ago

Hätte nie gedacht das das so super…

Hätte nie gedacht das das so super klappt mit dem Code. Einwandfrei, gebe meine Empfehlung weiter :)

Sebastian · DE

1 day ago

Muy buen servicio recomendado…

Muy buen servicio recomendado ampliamente está aplicación el código jalo perfecto en corto tiempo lo resolvieron gracias

Heriberto Ibarra · MX