Any thoughts?.. NEED TO GET THIS DONE!!!
 

we wired a switch into the accesory power for the key. not to hard to find the line, and with the switch shut off, nothing is doing anything. we didnt do it to prevent theft, so its right in the open, unlike something you would do. check it out. in in the off topic section under push button star on my buddies old ford. maybe give you an idea.

You could also run a switch going through the relay for the fuel pump. IDK what you know about switches but there are three male adapters one for the hot + one for the ground, and then the middle adapter is to go into the pos side of your accesory. What you would do is instead of hooking up the switch the correct way, you would cut the hot wire for your fuel relay and put one end of the cut wire into the + terminal of hte switch, then run the other cut side into the switch terminal (usually the middle adapter) and leave the ground adapter alone. Does all that make sense??
If not, let me know and I could look for a pic to explain better. I did alot of work with switches about 2 weeks ago so I know a little about them. Of course when doing this you would unhook your battery throughout the whole process or...

Whatever you use though, I reccomend turning on the switch everytime before you even put the hey into the ignition.

the best way to accomplish this is to find the 12v feed to your coil (there will be a short spark plug wire going from it to you distributor). using a multimeter or 12v tester, hook a lead to ground and the other to one of the 14 gauge wires that plug into the coil. Once you have found the wire that supplies 12v to the coil, following wht02monte's instruction switch that lead. This will cut power to the engines sparkplugs and will not crank, even if they manage to poor gasoline into the engine.

If you would rather, finding the ignition fuse in your electrical fuse box and switching that will have the same effect.

Please take care when splicing into your car's electrical system, as not leaving enough wire can cause you to have to replace entire sections.

I personally switch the 12v on my coil, but my car has significantly less electronics :)

if your worried about screwing something up. find a ground in your dash behind your kick plate that works for they ignition. to test, just undo the wires from the ground and turn your key to acc. if nothing happens thats your ground. just put a switch bettween the ground and the old wires that went to the ground and you can mount in somewhere underneath your dash easily. when its on, your electrical has the ground and can be used. when its off, there is no ground to complete the circuit.
get what im saying? thats probably the most sensable because then you dont have to run a switch from the engine bay

Should/could this work
 

basically, or use the wires comming from it. try my last help. i think that will be your easiest choice