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How to Wire multiple Car Accessories? ground and 12v constant

Discussion in 'Explorer Audio & Navigation' started by Jhonny, December 27, 2010.

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    1. Jhonny

      Jhonny New Member

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      04 ford explorer eddie bauer v8
      How to Wire multiple Car Accessories?

      i have an
      aftermarket radio
      hd tuner
      steering wheel adap
      brake bypass (for dvd)

      all connect to the OEM radio ground and constant, i get a start up thump (i can fix with resistor) but i'm going to add new 12v constant from the fuse box using fuse taps.

      now i don't know what to do with all my grounds

      what are ways to fix this?
       
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    3. FIND

      FIND Well-Known Member

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      just ground to anything where you get a good ground. Find a bit of metal that is attached to the body and bolt to that in other words.
       
    4. Jhonny

      Jhonny New Member

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      if i wire then to the same part won't i get ground loop?
       
    5. Jhonny

      Jhonny New Member

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      is there any "equipment" i can buy that would allow me to wire all grounds safely to it
       
    6. FIND

      FIND Well-Known Member

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      Electricity will follow the path of least resistance. Grounding to the battery is almost a direct path to the negative on your battery. Anything else you are grounding there will have much more resistance to a current than your body. Besides, most of the electronics you are talking about have diodes to prevent electrical feedback from grounds.

      For what it is worth, almost everything electrical in your car is grounded to the body. Pretty much nothing has a direct to battery ground.
       

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