inputs.text: great product use auxin cassette adapter - need fm transmitter would recommend kensington digital fm transmitter great transmitter charger combo auxin cassette adapter imo belkin absolutely way go benefits noise found far less noise using belkin using chargers fact many cars used belkin no noise vs great deal noise chargers due ground loops engine noise mismatched impedance volume isolation provided built amp contributor noise reduction volume control eliminates noise problehems related mismatched impedance mismatched volume requirehements noise mentioned posters likely due ground loop problehem originating cars wiring really fairly common problehem music player used along car charger volume level matching belkins volume level control able get perfect match ipods volume radio volume well perfect volume setting auxin cassette adapter note units providing line cannot adjust lineout volume via either ipod unit makes nice difference switching back forth radio ipod units cars blown volume time make switch set volume belkins base perfectly matched thereafter unaffected ipods volume settings always changing using headphones auto power belkin pauses ipod charger power shut means cars power outlet turned engine turned cars ipod within seconds automatically turn whenever shut engine big plus imo means never leave car ipod running return find dead ipod planning take ipod park thats way car audio supposed work chargers cleaner install quicker connectdisconnect one wire ipod supplying power audio means clean look quick setup take ipod car pete