Easy security feature.

[dbrick]

I ran into this circuit, makes a nice security device.
Basically you get into the car, turn the ignition on, and press the horn button once. The horn doesn't beep, the relay clicks in and switches the starter wire on and the horn button back to blowing the horn. Starter and horn work normally until ignition is shut off again and the relay opens.

This would work for starter inturrupt, or to ground the coil "-" as a kill, or the fuel pump if you have an electric pump. It will work on any switch, horn is just convenient. For coil ground, just wire coil "-"to 87A on the top right relay and ground 30. The diodes are important. It's from a site called the http://www.the12volt.com lots of good stuff.

[Redtail]

looks cool man, but you call 4 relays and a bunch of diodes easy?

a simple kill switch on the (-) coil is the ticket for me. and I didn't have to drill any holes or cut any stock wires either.

[Import_sounds-of-mid-GA]

that sounds pimp..... hard and time consuming, but pimp!!

[dbrick]

Not too hard, could wire the whole thing in advance, $10.00 worth of parts.
only 1 wire to cut, inturrupt the horn at the horn relay, and the kill wire is added to the coil, not inline. Only wire you need to cut is the starter and you could do that on the little short harness to the starter.

Everyone knows someone who can do this kind of stuff, just feed them and provide parts.

[Linda]

Think how much easier it would be if there were some pictures to look at
hint,hint.
Linda
68 1600

[dbrick]

Sounds like I have a project for this weekend.