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<blockquote data-quote="squeak9798" data-source="post: 2727176" data-attributes="member: 555320">The battery IS the ground.&nbsp; The only reason grounding to your chassis works as a &quot;ground&quot; is because the battery is likewise connected to the chassis.&nbsp; What does matter is the resistence of the path from the amplifier&#039;s negative terminal to the negative terminal on the battery.&nbsp; For smaller gauge wires (1/0ga or higher), the typical car chassis has less resistence over that length than the wire does.&nbsp; So in these cases, when the battery is located in the opposite end of the car, it&#039;s better to ground to the chassis than it is to run the wire all the way back to the front of car since the chassis has less resistence than the wire.&nbsp; But for larger gauge wire, the wire will typically have less resistence than the chassis.&nbsp; Which means in these types of situations, it&#039;s better to ground the amplifier directly to the battery than it is to ground to the chassis.However, seatbelt bolts typically do make for poor grounds.My suggestion would be to try muting plugs;<a href="http://www.davidnavone.com/MutingPlug/Muting2.wmv" target="_blank">http://www.davidnavone.com/MutingPlug/Muting2.wmv</a></blockquote>

[QUOTE="squeak9798, post: 2727176, member: 555320"] The battery IS the ground. The only reason grounding to your chassis works as a "ground" is because the battery is likewise connected to the chassis. What does matter is the resistence of the path from the amplifier's negative terminal to the negative terminal on the battery. For smaller gauge wires (1/0ga or higher), the typical car chassis has less resistence over that length than the wire does. So in these cases, when the battery is located in the opposite end of the car, it's better to ground to the chassis than it is to run the wire all the way back to the front of car since the chassis has less resistence than the wire. But for larger gauge wire, the wire will typically have less resistence than the chassis. Which means in these types of situations, it's better to ground the amplifier directly to the battery than it is to ground to the chassis. However, seatbelt bolts typically do make for poor grounds. My suggestion would be to try muting plugs; [URL="http://www.davidnavone.com/MutingPlug/Muting2.wmv"]http://www.davidnavone.com/MutingPlug/Muting2.wmv[/URL] [/QUOTE]

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