I have an A4 2012 and also thought that it would play through BT but to no avail, but in the glovebox there should be a square connection on the left to connect with the right wire connections flash drive ,mp3,iphone etc with the correct wires. I would have thought that they would have came with the car when you bought it, so if you have this square plug hole then you would be able to buy the connections you would need. If you have an audio guide booklet it will mention it in there. hope this helps