FIA master switch

Fitting an FIA master switch in preparation for first hillclimb events 3rd and 4th May.

I need to interrupt the wiring between the ignition and the coil - (which would be simple enough on a traditional old MGB type wiring harness) to kill the motor when the master switch is turned off - but I don't know which wire to select as

1. I have no wiring diagram

2. I am unfamiliar with modern day electronics I am afraid, and scared to death of damaging the MEMS unit.



Car is a 2000 year Trophy 160LE



Can anyone give an old novice some clear instructions please?



Many thanks,



Robin

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