Finding the S/N on a A6 / S6 / RS6's Radio
To get the correct unlock code, you first need the serial number from the radio.
Depending on your A6 / S6 / RS6, you can see it on the screen or find it on the radio unit itself.
It's usually written down as S/N, SN, Serial, Serial Num., Serial Number...
These are the most common ways to find it:
1. Viewing A6 / S6 / RS6's S/N on the Display
Audi A6 / S6 / RS6 radio does not show the serial number on the screen.
Unfortunately, the unit must then be physically removed to find the serial on a manufacturer label on the radio casing.
2. How to Find the S/N on the Radio Unit's Sticker
To find the serial number, you'll need to take out the radio unit out.
- Start by turning off the vehicle and taking off the dashboard bezel.
- Next, release the clips and slide the radio out to check the sticker on the side of the radio. Be careful not to damage the cables that the unit is connected to.
- Write down full serial number carefully and then come back to our website.
- Know that serial number and part number are not equal. You can find both on the unit, but you only need for the first one.
Example: Audi A6 / S6 / RS6 serial number label location
Common Serial Number Formats on Audi A6 / S6 / RS6 Radios
Your Audi A6 / S6 / RS6 radio serial number may start with:
AUZBP
Audi A6 / S6 / RS6's Most Common Radio Code Causes
Many drivers encounter radio lock problems on their A6 / S6 / RS6 after power loss.
Below are the most frequent situations when this can happen.
Battery Change Problem
After a battery change, your radio may show a CODE message.
This happens because the radio detects a power reset, which activates the security lock.
Other Situations That Trigger a Radio Code on Audi A6 / S6 / RS6
- Installing a used head unit will require the original anti-theft code.
- After an ECU or software reset, the radio may lock.
- A blown fuse can cause the Audi A6 / S6 / RS6 radio to lock.
- Jump-starting the vehicle can reset the radio, requiring the unlock code.
Quick Fixes Before Paying for a Radio Code
Before you decide to pay, you should check a few places where the code is often stored.
Some owners find their Audi A6 / S6 / RS6 radio code without needing any tools or paperwork.
Here are the most common things to check first.
Check the Car Itself
- In the owner's manual, often on a code card.
- Inside the glovebox, sometimes on a small card.
- In the boot compartment, on a radio label.
- In your maintenance booklet from the previous owner.
- On the head unit itself, if it was serviced earlier.
Can the Dealer Get It for You?
A Audi dealer can usually look up the radio code using your A6 / S6 / RS6's VIN.
In most cases, you need to contact the service department or visit the dealership and prove ownership.
When it is verified, they can generate the original anti-theft code for your radio.
Disadvantages:
- You usually need to book an appointment and bring vehicle paperwork.
- Dealers often charge a fee for the lookup service and it can cost more than 100$.
- The process can take days depending on the model and database.
- Some older Audi A6 / S6 / RS6 radios may not be supported.
Why Choose Our Audi A6 / S6 / RS6 Radio Code Generator Service?
Our Audi A6 / S6 / RS6 radio code lookup service retrieves the anti-theft code using the radio serial number.
Compared to dealership VIN lookup, this Audi A6 / S6 / RS6 radio code generator is faster, doesn't require vehicle documents, and costs less.
It's an easy way to restore access to your factory radio without leaving your home.
The Dealer's VIN Lookup vs FindRadioCode
- Delivery time: May take hours, while FindRadioCode is instant 95% of the time.
- Availability: Dealers work Mon - Fri, while our service is always available.
- In-person visit: Lookup can require a visit, while FindRadioCode works online.
- Pricing: It often costs 100 - 200 USD, while our service starts from 9.99 USD.
- Refund policy: Dealers usually offer limited refunds, while we include a full refund policy.
How to Enter the Radio Code on Audi A6 / S6 / RS6
You need to input the code into the system to unlock your Audi's radio.
In the locked unit, the screen usually displays a code prompt.
Based on the radio, use radio presets, control knob, or touchscreen to set each digit, then confirm the code to reactivate the audio system.
Be careful, because too many wrong attempts can disable your radio temporarily.
It allows a few missed shots before showing a SAFE message.
You can try again by keeping the ignition on for an hour or a set waiting period.
Radio Code - Quick Explanation
A factory radio code, sometimes also known as an anti-theft code is a security PIN that restores access to your car stereo after it has been disabled.
This factory security PIN is triggered when the radio is disconnected from power.
Car manufacturers use this security system to prevent stolen radios from being reused.
If power is cut, the radio stops functioning and asks for the CODE before it can function normally.
Once the valid numbers combination is entered, the stereo is fully reactivated.
A6 / S6 / RS6's Radio Code FAQs
Many of their radios use a security code, but not every model year or radio type requires one.
It depends on the head unit and production year.
Free security codes are rarely available.
Some manuals may help, but most codes require dealer lookup.
The only free possibility would be to check your vehicle and its glovebox to see if you already possess the code.
Yes, each head unit has its own security code. If you install a replacement radio, you'll need the code for that specific unit.