I'm replacing the wiring harness on my jet boat. It has a Ford 460 in it. The boat has five gauges on it. A tachometer, oil pressure, amperage, fuel gauge, and water temp. There is also a toggle switch which powers the ignition and a push button used to crank over the motor. Lastly there are two toggles. One for the bilge pump and one for the fuel pump.
It's all pretty straight forward from what I can tell. I would basically simply replace the wire there with new stuff and call it done. But there are a couple things I wanted to be clear on.
Because the boat had a fiberglass hull, I must run my ground back to the negative of the battery. All my gauges have a signal stud, power stud, and ground stud. Power because they're illuminated. Can I daisy chain my power wires, and daisy chain my ground wires on each gauge? Meaning can I daisy the ground from gauge 1 to gauge 2, then gauge 2 to gauge 3 and so on? Then do the same for my power wires?