Im thinking about getting an a3, really im after a sport with leather but I see alot of cheap SE with wood trim and material seats. Now I know buying and replacing with leather seats and changing the wood trim to piano or aluminium is easy enough. But I just wanted to know if it is possible to just replace the door card material? As I see lots of leather seats for sale that come with the whole door card. Is this because it a pain to just replace the material of the door card?