Sorry to disagree guys. VAG-COM version 409.1 is not CAN compatible nor is the cable suggested compatible with the 8P A3. Take a look at our
World Compatibility Chart. You will see that the 8P A3 is only compatible with CAN based tools.
It is possible that the 8P A3 may still have a module or two that will talk on the Klines but the 8P platform was released in 2004 and was one of the first Audi platforms to conform to the 2008 CAN standard for diagnostics. If you are able to read anything with a non-CAN interface, consider that a blessing and a gift.