Originally Posted by
boomhauer
I think the next thing I'm going to try is heat shrink tubing.
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.