Kill Switch

[Exocet]

Hi, want to fit a kill switch to my 2013 T5 to make it a bit harder for car thieves, to keep it simple as possible and without cutting into oem wiring,
I was thinking of the starter motor relay fuse 5a B21 on the centre consul fuse holders as described here in this forum
T5 ESSENTIALS (from September 2009), Fuses location,

Any thoughts or alternative ideas greatly appreciated, thank you

[LogicprObe]

Sounds as good as any other thing.
I've never known one to get stolen unless you have left the keys in it.
I suppose up your way they will steal anything they can get their grubby little hands on!