On Wed, Jan 28, 2009 at 09:38:41AM -0600, Neil Shaw wrote: > Russ Hathaway's toggle switch comment reminds me of my old '70 Mach 1. > It had exactly that. A simple toggle switch that was hidden in the ash > tray on the console. Unfortunately I wasn't told about it when I bought > the car and one day was cleaning the interior and flipped that switch. > It took us a full frustrating hour to figure out why the heck the car > wouldn't start. Sometimes the simplest things are the most effective. Indeed. A few years ago I designed a very exotic theft control system for use on tractor-trailers. The details aren't important; suffice to say it was complex enough to warrant a nest of state diagrams that took us some time to untangle, and the company we did it for (Magtec) earned a patent for it. What's interesting (and relevant) is that, at the end of the day, we were working under the assumption that a sufficiently determined thief will *always* be able to get what he wants, if allowed enough time. What justifies any antitheft system, whether really complicated or dead simple (like the ignition switch), is the knowledge that what it is really intended to do is add hassle, and, more importantly, *time* to the thief's job. The insurance companies' view is that if you can add just a few minutes to the task of stealing a vehicle, you've created an effective deterrent. jl _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list