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what is the best ground in the rear of the car.

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Old Jan 20, 2009 | 03:47 PM
  #1  
masterchief1112's Avatar
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what is the best ground in the rear of the car.

i have heard not to use the ground point near the battery but to use the bolt for one of the anchors for child safety harness. anyone else have any imput.
Old Jan 20, 2009 | 03:55 PM
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The factory ground point was used in my install but they did scrape off all of the paint before reusing it. Haven't had any issues at all.
Old Jan 20, 2009 | 04:45 PM
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use the factory ground bolt or get a new terminal and go right to the battery.

Why wouldnt you want the best possible conductor point? Whoever told you that doesnt know the truth. Hogwash I say, Hogwash.

Just a fyi, I run power wire directly from my batteries to all my amps. Never had 1 issue, it keep my voltage drop to a minimum on the amps.

Copper wire designed to conduct electricity is usually better at conducting electricity than a steel car frame designed to hold a car stiff.
Old Jan 20, 2009 | 05:10 PM
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Originally Posted by Ed RazorLite
use the factory ground bolt or get a new terminal and go right to the battery.

Why wouldnt you want the best possible conductor point? Whoever told you that doesnt know the truth. Hogwash I say, Hogwash.

Just a fyi, I run power wire directly from my batteries to all my amps. Never had 1 issue, it keep my voltage drop to a minimum on the amps.

Copper wire designed to conduct electricity is usually better at conducting electricity than a steel car frame designed to hold a car stiff.
Ground loops can be an issue if you go straight to the battery. May cause some noise in the system.
Old Jan 20, 2009 | 09:04 PM
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i actually remember seeing it here. got a call from the parts fairy. just waiting on my super speaker wire. maybe an install this weekend.
Old Jan 21, 2009 | 10:49 AM
  #6  
Ed RazorLite's Avatar
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Originally Posted by hhrcrafty
Ground loops can be an issue if you go straight to the battery. May cause some noise in the system.
I've never ran into ground loops or alternator noise issues going direct to the battery.

and I have been installing for 15 years.

On the contrary, a dirty ground on the body can cause some noise.
Old Jan 21, 2009 | 11:27 AM
  #7  
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more grounds the better.... im gonna try and ground each of the 6 batteries...
Old Jan 21, 2009 | 02:58 PM
  #8  
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i have 1 battery so i figure ill just ground to that one.
Old Jan 21, 2009 | 06:36 PM
  #9  
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having more than one ground --can cause problems-- an easy way to check this is to measure the DC voltage potential between the 2 grounding points..Do this with the AMPs or electronics on-- if you measure higher than 250 millivolts -- your grounding points are not at the same potential for whatever reason--rust,paint, loose connections. I have worked with this for many years with the larger DC plasma power supplies (ranging from 50 to 1200 amps at 240VDC)-- and a ground loop issue will drive you totally insane..!!!!!
Old Jan 21, 2009 | 08:33 PM
  #10  
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Straight to the battery with mine and no noise. Use good connections and you shouldnt have any issues. However, sometimes its not possible to use the battery (stereo deck and other electronics up front) so using Dremin2flyhi's method comes into play.



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