Ground Chassis v. Ground Neg Bat Terminal

Use a meter to check the resistance of the ground point for the amp to see if the ground is good or not, there is a sticky on this forum showing you exactly how do it. Testing is always faster and easier than trial and error situations such as this. As long as there is no resistance on the ground point then it wont matter if the ground is coming directly from the battery or to the chassis. Jazzy

thank you guys, will be trying anything and everything this week, starting with the meter, but it's trial and error after that.

Forbidden: I read the sticy . I understand where that person is coming from about the chassis causing the conductor to be of a heavier grade. You must understand though, the chassis is usually made of aluminum or steel, both of which are extremely poor conductors relative to copper. For my car, I ran three 2 guage wires from the battery all the way to the trunk. One on each side, and one down the middle. This gives me a nill resistance ground. IIRC, resistance = Cross sectional area x length x Ohms per unit of length.