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Audi Master
11,800 Answers
- Posted on Oct 24, 2010
Re: I have a 2000 audi A4 and my radio show safe i think...
It's an anti theft measure -you need to put in a code to unlock it.
The code and how to input it are in the manual of the radio. If you no longer have it then the safest way is to take the car to a dealer - they will search the serial in their databases, find the code and put it in for a small fee.
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