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Old 07-06-2019, 01:31 PM   #1
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Default Negative wire.

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?

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Old 07-06-2019, 01:51 PM   #2
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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.
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Old 07-06-2019, 02:41 PM   #3
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Awesome!!! So, do I pull the fuse panel to access the bus bar or do I pull the switch panel at the helm?
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Old 07-06-2019, 05:48 PM   #4
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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.
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Old 07-07-2019, 10:20 AM   #5
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On my 3000, the neg buss was up higher above the breaker panel.
Easiest to get to by removing lower gauge panel.
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Old 07-16-2019, 02:59 PM   #6
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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.
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