Cut off switch

[ceyese]

does anybody install a cut off Swicth on a 5th generation.
and how , maybe to fuel pump or ignition?

 

[BlackWorksInc]

For what purpose? Your vehicle has an immobilizer system and while not fool proof, it's a good security measure.

But a cut-off wouldn't be hard to do, just cut the ignition wire and splice a switch. If it's a push start, the concept is the same, but you're interrupting the start signal wire.