i bought projecter headlights and it didnt come with instructions heres what the plug looks like.

 

i had a 96 and bought a pair for it but they were black projectors and it had something that plugged in like that for the switch going off the 12v battery wire or something but that was like a yr and a half ago so i am not sure

 

so it goes into my healight switch

 

there is the actual headlight lens then the little projector in there and the projectors are run on a little toggle switch you got to mount in there