Join Date: Aug 2006
Location: Arlington, VA
Thanked 12 Times in 10 Posts
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Weatherproofing isn't a problem. The grommets are good for chafe guard. Just coat the wire and grommet with a marine sealant for additional protection.
I'd be a bit concerned about passing autopilot wires thru the pedestal if they're anywhere near your compass. As you know, any current passing thru a wire creates an electromagnetic field around the wire; the strength of that field -- and the potential for mischief -- depends on several factors. You might run a test...if that's practical...before finalizing the installation.