Adding relations from one part to another in sketch

Hello,

I am in assembly and in a sketch of a part.  I am trying to add a relation from a center point of a sketched circle to an axis of a shaft on a push button switch that is on a pcb in another assembly.  My relation will only see the center point of the sketched circle and not pick up the axis.  I have even set the filter to axis and it will still not recognize the axis.  I want to sketch the circle of my part concentric to the shaft of the switch.

Any ideas?

SolidworksAssemblies