690xv ignition wire

I'm assuming you are talking about the pre-wired starter kill relay - the one that has large green and black wires and small orange and yellow wires going to it.

The green and black wires should only be used to interrupt the starter wire from the switch(the one that gets power to crank the car). They should never be used on an ignition circuit.

The yellow wire from the starter kill relay and the yellow ignition input to the alarm both will go to the same place - the ignition wire from the switch.

Not the ign. wire...... the starter wire. There will be 2 connections made to the starter wire AFTER ITS CUT one connection to each half.

They will be called "key side" and "starter side" Thats all of the conections made on the starter wire. Now.... the ign wire could have 2 connections.

One to trigger the starter kill relay, and one simply for an ign. input to the brain.