If You wanted to kill fire to motor discreetly with a switch??
Would you splice into the minus side of coil or accy side??
Perhaps there is a better place. mid year car

 

Minus side of the coil grounding out the points.

 

Don't splice into the factory wiring harness.

- Add a black wire to the "-" terminal of the coil. Use a connector that looks factory.
- Wrap that wire in the harness, or otherwise disguise it to make it look factory.
- Run the other end of the wire to ground.
- Splice a switch in that wire.
- Secure the shield for the distributor and coil with a round button bolt that takes a hex headed key. Lowes has pretty stainless steel ones.

When the switch completes the circuit (when it's on), the ignition is grounded, and the car won't start. When the circuit is broken (when the switch is off), the car will start as normal. The stock radio ignition shield hides the wiring. The button bolt makes it difficult for a thief to remove the shield to do troubleshooting. Thieves may carry wrenches, but probably not hex keys.

On my C1, I ran the wire through the firewall with the other ignition wires. Then down the side of the car, under the carpet, behind the seats, to the trunk. The switch is in the trunk. When I get out of the car, I always have to go to the trunk to get my hat, leave my glasses, etc.. Reverse the procedure when I go to the car to drive off.

Don't hide the switch under the dash. There's not enough room. You think it's hidden. But most thieves will find it immediately. The cigarette lighter and radio trick are also well known.

 

Hi

I have kill switch underneath the dash its a toggle switch...Believe it or not I have trouble locating the switch at times. This old trick still works and alot of car thieves arent that "smart" to being with.

I had a buddy put a turn off valve near the gas tank of his 1963 Corvette. He got tired of replacing the convertible top when a thief would cut it open to gain access into the car. Then drive down the road about a block cant get the car started and leave it alone.

So, he would leave the doors open so his top wouldnt get "cut up"

Some thing to think about...

 

I have a "Battery Drain" system that connects to the positive battery post. The system has a remote control that allows me to disconnect the battery, just like you do a new car, with the remote control.

I have the switch hidden under the battery bracket. The unit will allow me to either totally disconnect the battery or provide enough current to keep the clock running but not provide enough current to start the car. The unit I have is only sold in Canada, but I had my brother in law send me one.