Trying to find ways of fixing the mp3 player... see what's causing the fading in and out with my headphones... only because I tried three different wires, then I tried the wires on another device, no problems on the other devices.
You might try cleaning the headphone plugs with a chemical. They may look clean, but often, due to electrolysis caused from dissimilar metals in contact, they can or have developed microscopic build ups of oxidation which can hinder connection.
De-Oxit is great, but pricey. Ammonia usually works fine on gold or silver. Vinegar can be an option, but it depends on the build up.
If yours are rhodium, chromium or nickel plated (silver looking shiny) use an abrasive like a worn out Scotchbrite pad, gently or just your fingers with some baking soda on them and try that.
Even my expensive gold plated Sennheiser and Beyer Dynamic often suffer from a build up that is easily wiped off with De-Oxit or ammonia compounds. Obviously my gold contacts can not oxidize, but the silver ones can. The gold contacts can still hold on to various other metal oxides from the electrolysis process which can not be stopped.
It might just be how your phone plug on your headphones interacts with your other devices.
Lots to try before giving up!
Oh, about the devices; the same thing happens inside them. You might try a broken off toothpick or match or Q-tip stem with some ammonia or vinegar on it, depending upon the metals inside.
Doesn't take much, just some friction with a complimentary chemical to cause the oxidiation products to let loose, leaving a surface that will mate with your plug ins.
