Anyone tried this?
 

Ferrite core supressor

I Read an article last night, stating that one of these can reduce the noise/clutter that we may get on our sonar image. This noise/clutter on the screen may come from a cranking battery or trolling motor etc. being that the sonar wire my run along the same wires or by a cranking battery. I have two that I took off my surround sound wires in my living room. ill keep you guys updated once I try it out.

Attachment 84565

I probably have 50 of them hanging around. If you want some P.M. me.