Hi!   Im thinking of changing my DRL bulbs to LED that matches the xenon to get a newer look on the car. The bulbs that are used for DRL is in the fog light housing and from instruction book is a PY21W SLL.    What is the difference between the PY21W and the P21W? Different socket?  Im also guessing that the Octavia is pretty sensitivte for LED`s..? So if I change to LED I will get a bulb out error on the computer? Can someone confirm this? If, its is no problem, I will just add a resistan