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wiring harness behind dash

MccMason

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New Member
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Jul 29, 2025
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10
Loc.
Bonney Lake
Im having hard time tracking down some wire connections behind my dash. I have a 73 and behind the dash on the drivers side there’s 3 connectors that were either unplugged or came unplugged when I was messing with it. A two wire, red and blue connector. A two wire, black and white connector, and a single wire, black w/blue stripe. Does anyone know what these might go to?
 

DirtDonk

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Nov 3, 2003
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51,619
Are you describing the connectors themselves, or are those the actual wire colors?
 
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MccMason

MccMason

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Jul 29, 2025
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Bonney Lake
Makes sense, sorry guys. The colors mentioned are the wires themselves. A two wire plug with one red and one blue wire. Another two wire plug with one black and one white wire, then the single black w/blue stripe wire in a single connector. I'm new to the Bronco world and to this forum so still figuring everything out. I appreciate the help.
 
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MccMason

MccMason

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New Member
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Jul 29, 2025
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Loc.
Bonney Lake
Its these 3 pictured here.
 

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Oldtimer

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Feb 4, 2005
Messages
1,795
Loc.
Sunnyvale, CA
A) two wire, red and blue
B) two wire, black and white
C) single wire, black w/blue stripe
My guess:
A is C-302
B is C-303, colors are not the same, but it would be in the same area.
C is C-313
All three of these connectors would mate with harness comoing from windshield frame. Ford had to go with small two wire connectors to fit them thru the frame, in place of older vacuum hose.

1754497917769.png
 
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