when i wired up my HiD's with the seperate ballasts all i can say is it was an absolute joke to be honest obviously you need to check for when there is a +ve for sidelights and then +ve for main beam and so on etc, but when i toggled to main beam, i found that no matter what, i always had a positive, even if the switch was on or off so in end after much debate i wired them permanently off the sidelights - stupid i know as the wiring is not sufficient and so on... but now since ive had them on constantly during the past 3/4 months, the switch has went open circuit on me - and now needing a new headlight stalk all i can suggest is that its not the HiD's mate and a wiring diagram off someone would be immensely appreciated for you and me both