Negative wire.

[Tzmanyndvl]

Hey guys!

1990 2700 scr

I want to install a fan, I have a wire sneak to move the red wire from the fuse panel to where I want the fan to be, however, where to I connect the black wire to? Where is the bus bar located? Can I splice into other ground wires if they are large enough?

Mike

[mmwjr]

On my boat there is a negative buss bar under the helm near the fuse panel. This is where I made the connection for my gps/chart plotter. I would wire the fan the same way.

[Tzmanyndvl]

Awesome!!! So, do I pull the fuse panel to access the bus bar or do I pull the switch panel at the helm?

[mmwjr]

On my boat there is a snap on cover that provides assess to all wiring around the fuse block and the negative buss is just to one side of it.

[jparsons121]

On my 3000, the neg buss was up higher above the breaker panel.
Easiest to get to by removing lower gauge panel.

[shrew]

Boats use a Common Ground system. Connect the ground to any other ground in the system to complete the circuit. The switches open/close the circuit. The positive needs to be fused as closely to the source (battery or panel) as possible. The fuse protects the cricuit (wiring) not the device.