One of my peeves is installers who install marine electronics into pedestal guards and make zero effort to de-burr the holes they've made, or to smooth the cut ends. Quite often I see molested wire jackets and sometimes wind up cutting myself on this sloppy workmanship. Arghhh...
PLEASE take the time to de-burr any holes you make in the pedestal guard, This is especially true anywhere wires pass through the guard.
I start with a rough rasp in a Dremel type tool..