just asked my local garage about fitting some Xeon lights inside and out and they advised me to make sure I get canbus error free. What on earth does that mean? I've seen some on eBay some H7 for the headlights and 501 for the fogs. I believe the boot light also takes a 501 and the reading lights are H10 if I'm not mistaken. I'm not too sure on what the license plate ones are. Anyway I've no idea what they are reffering to.....any help would be appreciated.