Hi, im new to the site. I have recently bought a 3 door Audi A3 58 plate. It is the standard model and doesnt come with the trip computer. Since buying it i have looked into getting it fitted and no garage, including Audi believe it is possible. I have read on a lot of forums thats it is possible with the correct equipment, which i dont own. Would anyone be able to help me with this? Thank you.