I've just aquired a set of headlight assemblies from a 2001 Seville w/ the wiring needed to plug into the car. I haven't had a chance to take a good look at them yet, but I was wondering if the ballasts & ignitors are separate or included in the fixures themselves on this particular application. I want to take these assemblies apart & fit them into my car (the least of my problems). But having no experience whatsoever in this, I would like to know what else this entails. Thanks in advance.