inputs.text: cannot play music sd port - plays music usb ports fine cannot get play songs properly sd card directly playing sd port plays first 1 2 seconds song skipping next take sd card put usb card reader connected players usb port songs play correctly copy function copies one file one currently stopped copy ports port 1st device plugged always source 2nd target screen shows copy direction cannot change fm transmission ok sound quality similar good amradio station trick seehems find 3 unused frequencies right next weak station sandwiched two unused ones set transmitter one middle headphone jack no audio input jack cannot use fm transmitter another audio source eg old standalone mp3 player usual playallrepeatoneshuffleplay options skip previous next song no fastforward reverse within track rehemehembers track playing power shut automatically restart beginning track power restored display shows track number selected fm frequency no information song playing