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Old 06-25-2011, 07:03 PM   #1
todd99
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Join Date: Feb 2011
Location: prescott, az
Posts: 225
I need YOUR help with wiring

To start I have a 1971 c20 custom camper. I need to tow a trailer with it on Monday, and I can't figure out how to wire the hitch.

I am trying to wire the stock square four wire plug into a flat four wire plug. I have tried different combinations and can't get it to work.

Please tell me what wires I need to connect together.


Stock Wires
Light yellow, black, red, white

New plug
Brown, yellow, white, green


I really need your guys help on this.
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Old 06-25-2011, 07:43 PM   #2
kellytheaker
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Location: ontario Canada
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Re: I need YOUR help with wiring

i have not got a schematic in front of me but it is not hard to figure out the left and right signals and brakes and running lights with a simple test light and then just go to a reese or other popular trailer hitch site and for 4 plug and they will tell you the hook up qand if the trailer is wired correct it will fall in place - dont stress its that simple
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Old 06-25-2011, 07:57 PM   #3
todd99
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Posts: 225
Re: I need YOUR help with wiring

I tried that. I can get the blinkers to work but anything else shorts out.
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Old 06-28-2011, 11:32 AM   #4
Longhorn Man
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Location: Hilliard Ohio
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Re: I need YOUR help with wiring

your stock wires should be green, yellow brown, and light green.
Brown for tail lights and markrts/lic plate lamp
yellow for left turn & brake
dark green for right turn and brake
light green for back ups
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