Connect an iphone or other mp3 player to a car stereo this 1 foot 35mm slim stereo audio cable is the perfect solution for portable audio devices ipod iphone mp3 players featuring a slim connector molding that fits easily into a 35mm headphone jack even if the ipodiphonemp3 player is in a protective case the startechcom advantage unique slim connector design fits most ipod and iphone 35mm stereo jacks without having to remove the protective casing gold plated molded connectors with strain