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Wiring harness help

Discussion in '2001-2005 Explorer Sport Trac' started by Curtid, May 15, 2018.

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    1. Curtid

      Curtid New Member

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      Maybe a 05 sports trac
      Installing a 7-pin trailer harness on my 05 sports Trac there is two wires in the harness behind the license plate that's athey say positive andpositive and negative I'm just wondering if I can use the positive wire for the power supply in the seven wire plug
       
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    3. njbronco

      njbronco Member

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      i noticed them on my harness as well. but I have an 01. I was thinking they are probably for the reverse light and charging circuit don't think there would be a negative wire.
       
    4. Curtid

      Curtid New Member

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      Humm. I'm just looking for a 12 v. Wire .For the power supply on trailer plug. To keep the trailer battery charged just trying to figure out if this circuit will do the job
       
    5. koda2000

      koda2000 Explorer Addict

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      How about the aux power port in the bed? All the other wires in the rear are for lights and would not have voltage unless the lights are on or you're stepping on the brake pedal.
       
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    6. njbronco

      njbronco Member

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      That it will not. It’s too thin gauge. You should run a ten or twelve gauge from the battery back for that with a fuse. Or use the power port. If it were mine I’d rather know the wire is safely gauged and fused.
       
    7. trey edr

      trey edr New Member

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      I use aux power port and its helpful :)
       
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