Headlights

So I've got an 05 Limited 2WD Double Cab Tundra and ive noticed some trucks have a tiny bulb in the corner of the headlight assembly. But mine don't have that. I was wondering what I was missing out on?

 

They are orange front marker lights. Sure they aren't burned out? Or is there no connector/bulb?

 

My headlight assemblies don't even have that in it. Was it an optional thing?

 

Also there is no wire/ connector

 

I think he's talking about the little light at the inner corners by the grille. Mine has those. I thought those were the DRL, but hell if I know.

Also seen in this drawing, a ways down from the number 5.

 

They're just marker lights on my '05 DC. They come on only when the running/parking lights are on, so are mostly superfluous. Not really functional for anything else unfortunately.

 

I assumed all the 05/06 double cabs had that light. I unplugged mine because it looked a little busy for my taste with my drl amber halos. It would be kinda cool if someone did a sequencer with them and made them blink and then did the bottom and then top turn signal bulbs. That was something I was pondering because otherwise they are pretty useless lights.