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Discussion Starter · #1 ·
Does anyone know how long should your amp ground wire be. I had a problem with my sub box and my ground to my amp sub came loose. I had someone run a fuse in between the ground wire and extend it some. I didn't have any noise before now I have a humming noise and a thump when I turn the car off. Could this happen because the ground is too long.
 

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Amp Ground should only be around 2 feet or less
 
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Discussion Starter · #4 ·
That's what I thought. I also thought a certified installer would know that.
 

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No fuse for ground, if it gets cut then all well. Positive gets cut then hopefully fuse will blow. 2nd the 2ft or less.
 

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Actually 18inches or less but 2 foot or less will work good.

Also should be 0 gauge wire but you should be fine up to 4 gauge.

And no fuse on ground only power and within a foot from the power source.
 
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