I had a set of hid bulbs and ballasts with the relay harness (35w 6000k) that were in my 06 f-350 6.0l with no problems. Today we put my old headlight hids and a new set of foglights in my friends 00 F-250 7.3L. When you turn the foglights on the idle drops a little then comes back to normal. When you turn the headlights on the truck shuts off. If you turn the headlight on before you start the truck it just cranks and wont start. anybody run into this before or am I special???? thanks in advance