ive been reading up a little about the angel eyes upgrade i can do to my future BMW, however im looking at simple kits to buy instead of making them myself and MON DIEU they're expensive! Ive concluded that a lot of the cost comes with the necessity of the projector headlamp as the lone kits are under $50 AUD sometimes. So my question is, why is the projector headlamp necessary for angel eye installations? cant you just solder a simple kit into the wiring of the car?