Not racing for sure. I tinker with street rods and all the guys have the switch like Hotrod mentioned but on the ground side of the battery. After reading prior posts on the no-no of removing the battery from a running circuit of a car I wanted to get mine right. I have a high current relay next to the battery(under the seat/floor board. The switch to control that relay is hidden in the passenger compartment. For me it will be a easy task to change that relay over to the positive side. For the guys with batteries in the engine compartment it might be more complicated. Thanks to all for your help.