[turtlecrxsi]

There's a box above the fuse panel under the dash. You insert a male connector into the left side of it for your positive and fuse it or connect to a separate fuse board (radio shack dirt cheap), then run to a toggle switch. Next run your negative from the toggle switch negative and to the negative of your inverter and then to your chassis. This should give you a reliable on/off switch that can only be used when the ignition is on so you won't accidentally leave it on. I wouldn't jump a fuse on your panel.