Good afternoon
I apologise if this is a repeated subject, i have a 2007 q7 with leaky halogen headlamps and i am looking to upgrade to Xenon headlamps from the same year vehicle (without DRL) do i need an adaptor and does the module need to be programmed to make them work as i've heard some bulbs flicker until they've been programmed but this was mainly with the DRL conversion headlamps.