Audi A4 / S4 / RS4 2009 Unlock Code⚡

B8 | Instant Retrieval | 24/7 Service

Audi A4 / S4 / RS4 2009 car photo
Dealer price $120 92% Off!
Our price: only $9.99
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100% Money-back guarantee if the code doesn't work

Your code is displayed within seconds after finishing your purchase and is emailed to your email also. We're available always.

Code doesn't work? You're protected by our Complete Satisfaction Guarantee. Simply send us a video that shows both the code entry and serial number together. No questions asked.

View our complete Refund Policy.

Once you have your code:
1. Turn on your Audi A4 / S4 / RS4 2009
2. Your radio will display "Enter Code" or "CODE"
3. Use preset buttons to enter each digit
4. Press and hold button 6 to confirm
5. Your radio unlocks immediately!
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How to get your Audi A4 / S4 / RS4 2009 radio code?

1. Find the serial number on your radio. Press and hold preset buttons 1 & 6 for 2-3 seconds. Serial number will display on screen. No VIN required!

2. Enter your serial number in the field on the left

3. Proceed to checkout to instantly receive your unlock code

Compatible Radio Types:

  • Audi OEM
  • Blaupunkt
  • Siemens

Serial Number Patterns:

Your radio serial may start with: AUZ, BP

Serial Number Examples:

AUZBZ7A1234567 (AUZ)

About 2009 Audi A4 / S4 / RS4 (B8)

Your 2009 Audi A4 / S4 / RS4 (B8) came equipped with original equipment radios that require unlock codes when power is disconnected. Our service provides rapid radio code retrieval for every 2009 Audi A4 / S4 / RS4 trim levels.

Common Reasons for Radio Lock:

  • Battery replacement or removal
  • Wiring work in your 2009 A4 / S4 / RS4
  • Radio removal
  • Fuse replacement
  • Jump-starting after battery died
  • Purchased second-hand vehicle without code card

Why Our Service is Better:

⚡ Instant vs Days of Waiting
Dealer: 2-5 business days
Our service: Seconds

💰 $9.99 vs $120+ Dealer Price
Dealer: $120-$200
Our service: $9.99

No VIN required - just your radio serial number! Works for all 2009 Audi A4 / S4 / RS4 trim levels and radio variants.