My mate has nearly completed my LED/Bi Xenon conversion. We're just stuck on what exact serial number onboard control unit we need for them to work completely as my current one will not power the leds. My lights do work as we tried them in an A3 8P with Bi Xenons. My A3 is a 59 plate 1.6 TDI 3 door. Any help would be muchly appreciated. Cheers
