#11453, "RE: QUESTIONS: security and other electronic stuff" In response to In response to 6
there was a time when immobilizers wiht keypad were popular. But I think the only thing they did was interupted a number of electrical connections like you can kill the starter, fuel, ignition.
Going the way of Transporter is a custom job, which with proper knowledge shold not be too difficult or there might be a kit. And let's remember ford cars that have had combination code on doors for quite a wile now