How to starter kill with 2 starter wires?

Doing an install on a nissan sentra 2002 with 2 starter wires. Anyone have a clear and easy way how to do a starter kill relay for that vehicle. Do I really have to use 2 relay's for the starter kill alone?  I need to make sure that if the brain fails, the car will still start with the turn of the key.

Some brains have a jumper for a 5th relay that can be set to 2nd starter as well. If it not used as a second ignition, use it for the 2nd starter. Otherwise the last post was bang on.Top Secret, I can tell you but then my wife will kill me.

Ok, my brain does have a 5th relay for 2nd starter but that doesn't help with the starter kill I don't believe? It does allow me to hook up both starter wires though. Does anyone have a wire schematic for wiring in 2 starter kill relay's? When I say starter kill I mean, so when you get in the car and turn the key, you don't accidentally turn it to far and grind the starter drive.