I did the one on Mudhawg jeep. another thing that I have done before is intercepted the ign to solenoid on starter, and put a relay inbetween. This relay get energized by another switch like rear defrost, wipers, headlights, high speed fan etc. Just so you get the idea, you have to turn this function on inorder for the ign curcuit to solenoid on starter to work. A hidden switch works too. For this reason they can bust the column, do what ever they want but if they do not find the hidden switch or relay, they are not getting it. They tried on that jeep and it simple did not happen.