Best place to splice Fuel Pump cut off toggle switch on 2005 express

[trackvw]

I would like to put a toggle switch to cut off the fuel pump power as a security switch , 

so with the switch in the "off" position the motor will turn but not start , 

 

My van was stolen a few months ago from in front of my house in broad daylight , and I was home !

i did get it back within an hour because I had a tracker in it , and if it was only 1 mile away , 

But if they would have headed to the freeway it could have been 30 miles away !

 

anyway I would love to hear your ideas , 

 

is there a pigtail that can go in the fuse slot  that I can connect the cut off switch ?

and where is the fuse ?

Thanks for your ideas..............

[Tickerguy]

If its like the '03 my kid has the fuel pump relay is in the main box which is under the brake master in the engine compartment.  It is labeled on the top of the lid.  The easy way to do this is probably to figure out which is the wire for the coil coming into that relay and interrupt it.

 

No coil power, no relay pull and thus no fuel pump pressure, no start.