Yep, that's what I said. Resistor if it's been converted to 12V, no resistor if it's stock 6V. You can still hotwire a 12V engine to fire it up by bypassing the resistor. That's the way many cars start anyhow, and then run through the resistor to lower the voltage to the coil when the ign. switch reverts to the "run" position. I wouldn't recommend going on a trip like that, but you sure could move the truck out of the way or whatever you need to do.