When fitting xenons I've had a little look into this being a tech and searched the forum but confused a little about these kufatec looms? Basically I've got a edition without xenons I've just brought the misus a mk5 diesel with xenons and I want the xenons on my edition. Now why can't I just swap the lamps over with the wirring and then program via vagcom?? Do vw use the kufatec loom as oe? Or are these looms just a cheaper option for people to be able to run the xenon as a upgrade?