I found a black tube with a long fuse inside of it (maybe 4 inches long) wrapped in plastic. I assume it's a fuse - could be a spare lightbulb of some kind but not sure. It's not like any normal fuse in the fuse box and seems small for a bulb. There nothing else in my gargage that this could be from and I am worried this fuse wasn't installed at the factory or when it reached the dealer. The black tube actually look like is threads into something. Does anyone know what this is?