On eBay when I search 'Bulldog golf cart anti-thief device' I get several listings for this.
New Golf Cart Car Truck Security Anti-theft Lock Device Steering Wheel Lock, Red | eBay
Maybe you have a link to the one you purchased. This looks good, I posted on here about a year ago that one of these would be great on a golf cart. However, with SR 44 so close to Brownwood, a thief with a trailer and a couple of friends can get away in no time. I quit driving my cart to the squares or shopping five years ago, I prefer an air conditioned car with a radio anyway. I use mine for golf only.