I've been using this adapter for over a month now with a boombox I purchased from the local DMV. I removed the clear sticky over the metal part as others mentioned and the sound from my iphone 6 and it is great! Couldn't be happier, especially for how inexpensive the item was. Plus, this allowed me to update an old Sony boombox into a Pandora player. I am not clear how long it will last, but for the price, can't go wrong.
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