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classic mustang cut off switch problem?

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anrace:
Would it be wise to put a cut off switch hidden somewhere in my classic mustang?
just started doing the wiring on my 66 mustang and looking at it, it looks like it would be easy to hot wire, very basic system! would it be wise to put a hidden switch somewhere that you had to flick before turning on the ignition. just wondering if anyone has had a problem or is it works for them. or if this is a stupid idea. cheers and thanks for your answers

66GTKFB:
If security is a problem a switch may or may not be the answer. There are several ways to place a switch but none are 100 pct effective. The current method to steal a car (Mustangs included) is to tow it away. If I want your car, I'll use a jumper from your battery to the coil to eliminate the key so any under dash switch is no problem. Keep it in a garage. That's the best security.
Jim

Soaring:
Yeah, Jim is right.  Keep it in a garage if possible.  If you put a switch in, make sure you also put a hood latch that is accessible only from inside the car.  Put in an audible alarm which can be very inexpensive.  I paid $25.00 for mine and it works like a champ.  However, if a thief wants your car, they will get it if they are pro car theives.  All of this above is to keep the kid down the block from going for a joy ride.  Get an insurance policy to cover the cost of the car to replace it.  That is another topic though. 

airwaves:

--- Quote from: anrace on September 19, 2008, 05:16:06 AM ---Would it be wise to put a cut off switch hidden somewhere in my classic mustang?
just started doing the wiring on my 66 mustang and looking at it, it looks like it would be easy to hot wire, very basic system! would it be wise to put a hidden switch somewhere that you had to flick before turning on the ignition. just wondering if anyone has had a problem or is it works for them. or if this is a stupid idea. cheers and thanks for your answers

--- End quote ---

I wired a lot of oldies in my days, but back then they were still under warranty. The primitive anti theft system I came up with back then was to use 3 single pole, double throw toggle switches. These are the ones with 3 blades in the back. Depending on the position of the toggle, the centre blade is connected to either the top or bottom blade. Run the coil feed wire, ( hot, ignition on) to the centre of the of the first switch. From which ever blade you chose as the coded one, run a wire from it to the centre of the second switch. The same procedure applies to connect switch 3.The last connection is to connect the wire leading to the coil on the back of #3.The combinations are numerous. UUU, UUD, UDD, UDU, DDD, DUU, etc,. Now the anti theft part. The unused blades at the back of each switch are wired in series and continued down to the horn side of the horn relay. If there is power applied to the coil from the ignition switch or a hot wire at the coil, the power will flow from the ignition wire directly to the horn if any of the 3 switches are in the wrong position.

Soaring:
Yeah, that is a good anti-theft system for the kid down the block, but not anymore effective than a factory anti-theft system.  A pro will just grab a classic mustang from the rear with a hook and wench it up onto a flatbed.  Simple.  Get a good theft insurance policy. 

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