underhood light.
It should have a plastic piece taped to it about 4" long on the outside of the loom. If you look at the edge of the hood about 1/3 in from the passenger side you'll see a couple holes for the bolts that the light mounts with. Don't bother hunting one down in the JY, they're nearly worthless, just get yourself a light you like the look of and mount it there.
EDIT: also remember that that connector is constant powered and if you don't put a switch (or preferably a tip/mercury switch) on it, the light will stay on with the hood down and will drain your battery!