Hi everyone, I'm in the middle of cleaning up a new to me 1983 O'Day 30 C/B and apart from the rotten boards, dirt, messes and aging parts, I've come across a something I've never seen before, as in my previous boat ownership my old boat had an outboard. At every point where there is a hose, a ground wire had been installed to connect the two metal parts and runs parallel or if the hose is long, its been wrapped around the hose. Is this normal?