Removing Your Audi A3 Radio
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There are 2 types of Audi serial numbers. It is simple to remove your Audi A3 radio. You will need a set of radio release keys. These are inexpensive tools, you can obtain them from Amazon.
Push the keys into the 4 holes in each corner of the radio, apply pressure and the radio will be freed from the dashboard. The radios label will be located on the radio's casing.