MSA Battery Isolator Wiring, where to find ECU feed to wire into?

[Gaz-m]

Ive fitted my battery isolator but need to find the ECU feed wire to wire through it so it cuts out as it needs to.

Anyone who has one wired, what have you done?

 

[mark123]

Easiest way is to patch into one of the wires coming off the ignition barrel.

Which one depends on your cut off switch. What type is it?

 

[Gaz-m]

Theyre all heavy wires though?

its the FIA one with four smaller spade terminals on it numbered 1 & 2.

Already have 1 (i think) wired from engine side live to the resistor for alternator winding down.

The other i need to put a live through, that when cut will kill the engine..

 

[mark123]

What current is that part of the switch rated to?

 

[Gaz-m]

Doesnt say! :S