Hi all, My first post here now im getting a audi

Im getting a audi A3 cabriolet probably 6 months - 1 year old, just looking for the right deal, a lot of the ones ive seen have the standard headlights, but ideally i want the LED daytime-running lights, if i cant initially get them and choose to upgrade at a later date is it just a case of swapping the headlights or is there more wiring etc that also needs to be changed?

Also im guessing the LED daytime-running lights cost a lot, does anyone know how much exactly and if there is anyone selling them other then the dealer?

Thanks