Thanks @dpdpdp. That is super helpful to say the least. Do you by any chance have a picture of how you terminated the other end? That would help me figure it out without risking an electric hazard. Thanks again!seems I used an old power cable from a refrigerator or appliance and just wired the ground to the chassis of the receiver. I did scuff the paint a tiny bit to get to bare metal. Then I plugged it into the power strip I was using for everything and viola no more hum for me. I think I pulled one or both of the spades on the plug so I had no power going through it.