I have just had a set of Angel Eyes (from ebay) installed on my A3 1.9tdi 1999 and the main, indicators and full beams are working all fine. But I have not as yet, connected the LED Halo's (rings). There is one red and one black wire coming out of each Headlight, and I'm certain thats what they are for, but I'ts not obvious how to connect this. Unfortunately, the lights came with a manual, and I left them with someone to install whilst i was on holiday, and he's lost it! But, I have read on another forum, that this should be fairly simple - the Grey lead coming from the car is for the negative (BLACK) cable on the lights, and the Brown lead coming from the car is for the positive (RED) cable on the lights, but it sounded like the guy was guessing. I read on another forum, that if i do this (remove the grey/brown lead from the harness and attach it to the black/red leads on the light) then i would need a 30 ohms resistor in between them. Does someone have any detailed instructions or anyone whos done it before know how they got them to work? Any help is greatly appreciated. Thanks.