After doing some searching, it appears that some have added a collapsible antenna or some other form of rigid antenna to the Nady units. What antenna was used? Any advice, pictures or "how to" information would be greatly appreciated. I've heard that if you use the wrong antenna that reception could worsen. Also, I've noticed that some stereo cables have "foil" wrapping around the inside of the insulation - does this hinder reception when used as a cable/antenna or help?