FSUNole17

iTrader: (18)

ok, i want to upgrade the factory ground at the battery to a 4AWG wire..... i know it is a simple task, but my question is do i need to install another wire behind the rubber thing on the battery terminal or do i need to take teh rubber thing apart and stick one in there or how does that go? i wanna know exactly how to do it before gettin my hands dirty....... thanks!