Hi everyone, I recently bought Audi a3 2014 8v m, however it is with halogen headlights. I am currently planning to retrofit bi xenon headlights, however I am not sure what parts do I need ? I have seen on ebay Hella bi xenon headlights for £350 each and it doesn’t sound too bad to me, however I thought i just need the headlights and coding, but from some reading it seems to be very complicated and I am not sure what parts do I need? I have asked one company that does retrofit and they have said £1600 with genuine audi headlights, however if the hella lights are £700, I am wondering if £1600 is not too much ? Thanks in advance!