Hi, I wanted to put HID fogs on my 06 a4 and i was just wondering will i need to buy a code cancelling device, i have the stock hid system from audi for my headlights and just want it all to match. P.S is there a way to have the fogs come on automatically with the light toggle set to auto?

 

I think some HIDs will need code cancellation due to their lower wattage than the stock fogs. There is no simple way to have the fogs come on in auto, you'd have to do some rewiring. I don't think I've seen anyone who's done this.

 

thanks a lot