Okay, I have a 2009 A3 and I did the halogen to Bi-xenon+LED retrofit using the kufatec harness. I needed to wire in the leads from that harness into the CEM at the following locations: Plug A, pin 5 and 7 then Plug D pin 6 and 10. When installing the Kufatec leads I had to remove two factory leads at Plug A pin 7 and plug D pin 10. Well after doing the correct coding everything on the xenon headlights is working perfectly. My issue is those two factory leads I had to remove are for the rear LEDs in the tail lights, so now they don't function. Does anyone know where the rear tail light LED leads should be wired into for proper function?