<VV> Oil pressure gauge and shut off switch setup

[Stephen Upham]

I think I may have miscalculated the number of plumbs that I need in  
installing a sender for an oil pressure gauge.  Here is the skinny.   
I ordered an oil pressure shutoff switch from Cal for the electric  
fuel pump.  I attached the sender for a dial gauge on an improvised  
line using brake line tubing and a grease gun hose to the sender for  
the gauge to move it to the pinch weld near the battery.  I t'ed the  
shut off sender for the fuel pump to this.  I didn't get a plumbing  
connection that would allow for two senders (original and the shutoff  
version).   On the shutoff version from Cal, there are two poles.   
One is for the power (to battery) and the other to the fuel pump  
power wire.  My oil pressure sender (the one that will actually give  
the pressure readings) has a ground terminal and a sensor terminal  
that goes to the gauge under the dash.  Is it possible to run the  
original sender wire to one of these terminals and get the same  
effect as the original, lighting the dash light (idiot light) before  
turning the engine over?

Stephen Upham