Originally Posted by
gauvins
Probably a very good idea. Connectors are typically rust-proof, so you problem would likely be (1) poor connection between wires and terminals; (2) the wire themselves corrode.
You may want to tin the tips of your cables, and properly crimp your connectors (essential on blue-water boats). Heat-shrink tubing sounds like a good idea as well. If there's a boat store/marina in your area, you could pay them a visit.
Never tin the wire prior to crimping in the contact. This guarantees you will not get a gas tight crimp. And get poor electrical contact as well. If you feel you need to solder the wire to "seal" them do it after crimping, not before. Or just use
blocked wire and not worry about it.