mathxew 10+ year member
Member
The amplifier i am using only needs 8 gauge wire, but i only have a long length of 4 gauge, so i want to use that for the power, can i use an 8 gauge wire for the ground?
Just common practice. As others have said, as long as the amperage demand isn't that great, 8g can work, and the shorter the wire the better it'll work. But for how cheap you can get 4g wire, you're just better off going 4g.i thought i read somewhere that u can only use a larger ground than power not the other way around...could be wrong though