Removing horns from top of cab

After removing horns from the top of the cab, what’s best recommended for filling the holes?

 

Fiberglass, sand and paint.

 

Gobs and gobs of silicone and duct tape

 

Why do you want to do that? Don't tell me you want those dumb train horns under the sleeper

 

Already there and the ones on the roof are nonfunctional.

 

You sure do bring up your displeasure for train horns often in just random posts. Something happen to you when you were a kid that involved train horns on a truck? Just curious

 

Remove horns add roof markers in place of horns