[CP241]

I've used suzuki LT80 ignition switches. They have 2 terminals that are closed when the switch is on, the other terminals close when the switch is off. This way you can still throughput the ground when you turn the switch off and kill the motor.

Really any 2 terminal switch *can* work. The cart will run and work fine without the ground terminals when you turn it off. Only problem is you'll be able to turn the switch off while you're driving it and it will keep running like normal. Once you stop and the engine shuts off, it's not going to restart again (because the switch is off) so it's not *that* big of a deal. But opens up some more options anyway