On July 27, 2018 at 18:10, kwkshift said...
If you can't find the source of the hum, either one of these should solve your problem:
[Link: amazon.com][Link: amazon.com]I have used both in the past with perfect results.
I've used that Rolls piece and it worked perfectly. I keep one on the van now. Never seen that outlet thinga-ma-jig though. Interesting.