Car Performance Specs

1. Turn your XM radio on. Position the antenna -- if a standalone receiver -- facing skyward. If you are refreshing an in-car unit and you park the vehicle in a garage, pull the vehicle out of the garage.
2. Tune your XM radio receiver to station 0 and observe as an eight-digit, alphanumeric code appears on the screen -- this is the XM radios ID. Notate this ID. Please note that SiriusXM does not use the letters I, O, S or F in radio IDs.
3. Tune your XM radio to channel 1.
4. Log onto the internet and direct your browser to the SiriusXM website.
5. Place the pointer over the Help & Support link on the top, right of SiriusXMs website, and click Refresh My Radio.
6. Type your XM radios ID in the text box labeled Radio ID (ESN or SID), and click Send Activation Request.
7. Wait approximately five minutes as your radios signal refreshes. A message on the display alerts you when the refresh is complete -- the exact message varies, depending on the style of receiver.

1. Find the exact model of your Audis radio, which is usually printed on the front of the radio. To double-check, either contact your Audi dealer or visit the online list of Audi radios, complete with photos.
2. Contact your Audi dealer to obtain the anti-theft code that corresponds with your radios model. This code will usually be 4 digits, though with some codes the first digit is blank.
3. Press the 2-button combination that triggers your radios unlocking sequence. For example, if your radio is a Delta, press and hold AM and ARI-Z simultaneously until the display flashes CODE, then immediately release. After a pause, the display will flash 1000.
4. Use the numbered preset buttons to enter the code obtained from your Audi dealer. For example, if your code is 1572, press the 1 preset button once, the 2 button 5 times, the 3 button 7 times and then press the 4 button twice. These numbers should appear on your radios display as you enter them.
5. Press and hold the 2-button combination from Step 3 until the radios display flashes CODE. Your radio should unlock at this point.