hello all ,new to this forum ,I have just bought a a4 2.0 tdi s line love the car am adding a few extra bits to it ,and need a few pointers in the right direction,the car came with no trip computer,I bought the stock control fitted it and had a guy come this evening to program it with the vagcom,it took the new code, but still nothing coming up on display, does anyone have any ideas to what I can do next thanks