Hello All, I have a 2006 A3 Sline 2.0T and unfortunatly it did not come with xenon headlights. I've read on here that the easiest option is to fit oem single xenon lights as it straight swap and vagcom. Does anyone know where i can buy brand new headlights with the ballasts or have the part numbers so i can enquire from audi. i've tried ebay and have not found any. thanks in advance.