I'd like to re-open the topic of practical car theft prevention schemes.
This is a hot topic for me, as I had a nice, fancy, almost new and one month
old car stolen right out of my driveway this weekend.  Burns me up.

Without devolving into the underseat-knives-on-solenoids or high voltage
steering wheels silliness, I'd like to figure out how I'll modify my next
car so it can't be stolen, without spending big bucks,

Here's some ideas:

1. Interrupt the line to the starter solenoid with a switch or relay.
Either hide the switch in a wierd spot accessible to the driver, or connect
it to a coded keypad.

2.  Is there an electronic way to disable an automatic transmission?  Some
solenoid that engages something that could be disabled?

4.  Disable power to the distributor with a special switch.

5. Disable power to the electric fuel pump.

6. Affix a 555 driven transistor to the horn and stereo and activate it if
the driver doesn't enter the secret code within xxx seconds of starting the
car.


Now obviously, a real pro could defeat this stuff, but we're probably not
going to stop a pro anyway.   My car was not locked, and some kid probably
tried a few car doors, found one open,  jumped in, drove it down and pushed
it into the river, or sold it to a chop shop.


-- Lawrence Lile
Sr. Project Engineer
Salton inc. Toastmaster Div.
573-446-5661 Voice
573-446-5676 Fax

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