88About the optional unitHow to operate the tuner with an optional XMsatellite radio tuner connected (U.S.A./CANADAonly)About the optional unitAbout XM satellite radioIf the optional XM satellite radio tuner unit isconnected, satellite radio broadcasts can bereceived.With XM satellite radio, over 170 channels areavailable including music, sports, news, andentertainment programs.The channel can be selected from categoriessuch as ROCK and DANCE, or by selectingindividual channels manually.Reception of XM satellite radio is fee based; youhave to subscribe to it.It is possible to subscribe through the XM radiowebsite.URL: http://www.xmradio.comATTENTION• For details on the settings and operation ofthe XM satellite radio tuner unit, refer to theXM satellite radio unit owner's manual.• The main unit will accept up to 24 stationsin memory.Selecting the radio modeFor details, refer to "Switching AudioModes" on page 18.Selecting a channelThe radio bands will switch from XM1→ XM2 → XM3 → XM4 in order eachtimethe button is pressed.Right:Selects a higher channel.Left:Selects a lower channel.Reception is enabled for all channelswithin the currently selected category.(Refer to page 89 for details on“Category selection”.)Right:Starts searching for higher channels.Left:Starts searching for lower channels.1 Switch to the XM satellite radiomode.1Press the [RTN] button for lessthan one second to switch to thedesired XM band.2 Press the [SELECT] (Right/Left)button to tune to a channel.3Press the [SELECT] (Right/Left)button for more than one secondto start an automatic channelsearch.