Where can these be sourced, other than door latches? I want to buy a "ricer" style shift knob and replace the normally open with a normally closed switch to cut fuel on demand (DFCO help) rather than try the vacuum idea. If the car doesn't stumble or code out from cutting fuel too early vs ecu's control ill add a vacuum switch to make it fully automatic. By having the button on the shifter I think it would become pretty second nature as I drive, but I'd hate to hit it on accident
