The antenna looked like a big faded yellow race spoiler.
Could not stand the thing so I removed it.
It left a hole for a bolt, and a hole for the cable.
Without any other options in the garage I opted for the SunCure Surfboard repair stuff I keep in the garage frige. I plugged the holes on the inside with shaved corks leaving some fill area on the outside.
Blue taped around the holes and filled the holes with SunCure.
The next day I sanded it and it looks good.
Now I need some touch up Gelcoat and I'm good to go.