can you put flags in 'em?

 

I just got an Ultra tour-pak put on my bike. It has holes on the front for the speaker boxes, the factory put little black plugs in them. But on the rear, I had 2 studs sticking up one for the antenna and the other for a CB antenna. The dealership put a little black rubber cap over the stud (looks like a vacuum plug). With all the black in the taillight trim, the cap looks alright to me.