Best Cable for canceling RFI

Problem:
WAY too much rfi interferance from local broadcast FM radio signal.

System:
Jolida 302a Integrated Amp, Castle Acoustice Richmonds, Rega Planet 2000 CDP, Kimber 4pr speaker cable. DIY power cable.

I have tested everything and all interconnects disconnected

I am getting an identifiable signal from a local FM radio broadcast - 91.5 Brooklyn New York - SUNY rebroadcast of foreign radio - when nothing but my amp plugged into the outlet.

I build my own power cable - Shielded Belden Cable with Shurtere IEC and Marinco Hospital grade wall plug. I grounded the shield at the wall plug end.

I was listening last night and it's driving me mad!

How to fix? New power cable? w/RFI canceling? Will it REALLY make a diference? Will 'power conditioning' help? Like an 'on-line' UPS?

Much thanks in advance for you thoughts.