When the Mp3 player or phone (32 gig of music on it) is playing through the aux port it sounds great. If I plug in a charger through the electrical port in the left pocket, or any other electrical outlet I have added, I get an electrical wine. Unplug the power and run the device on battery, it sounds good again. Now I can do electrical work pretty well, I have added ports for the battery charger, one in the back for anything Gloria wants to plug in and ports for the heated gear. But now we're getting into the realm of Electronics, which is so much voodoo do me. I know there is an in-line thingy for the electrical port, and another whatsis called a "ground loop isolater" that apparently can go in a few different places depending on the design. (Oh- sorry about the technical jargon there.:Shrug
So the question for those in the know, what do I get and plug in?