Oil Pressure Switch wiring.

[Sevy14]

Hi folks, somewhere along the line my plug for my oil pressure switch has kind of disintegrated. Can anyone tell me how the wires connect by colour onto the pressure switch? There is three wires.
Thanks

 

[pacecarta]

A- pink/blk stripe =12v switched with ignition
B -tan = to gash idiot oil lamp
C- gray = to fuel pump

 

[Sevy14]

Many thanks