My point wasn't saying water won't happen, it's talking about what I need the most. Like I said, wiring is ultimately something I've never had an issue with, although this is the first time I'm making a complete wiring harness basically from scratch. When you look at the Pegasus wire it states resistance to oil, gas, grease, and acid. I'm assuming that if it does those it also is resistant to water, although probably to a lesser degree than the Marine stuff. Heat, however, is something I know will be present.