on the 3∙2∙1 system remote, press fm or am. if the system is off, the radio will turn on to the most recently selected station.
Using the radio
You can tune to a radio station in any of the following ways:
seek: press seek forward or seek backward to tune to the next strongest station
tune: press tune up or tune down to manually tune to a station one increment at a time
presets: press the number of a preset station on the number pad, or the preset up or preset down arrow to select the next consecutive preset station.