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Discussion Starter · #1 ·
I need to hook up a 4-way plug and I'm wondering which wire is which. There is a dark green, light green, yellow, brown and a thick white ground wire. Any help?
 

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Discussion Starter · #2 ·
Also the wires on the trailer are green, red, white and brown. Not sure which is which. And there is a seperate ground wire.
 

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Discussion Starter · #10 ·
Theres an extra fifth wire hanging off the trailer's hookup which i thought was the ground but everytime i hook it up to the ground on the truck i blow a fuse.
 
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