Eton 9120 - Manual (Page 9)

Using Headphones/Earphones
Before placing Earphone/Headphone in/on your ears, turn
the volume all the way down. Use Headphone/Earphone
with a 3.5 mm [1/8th inch] stereo plug. Plug them into the
earphone socket on the back of the radio [5.1 & 5.2].
Selecting the Operating Mode (iPod, XM, FM, AM,
SW, DAB OR AUX)
[5.1] [6.2] [6.1] [5.2]
After turning on the radio, look at the display [6.1] and either
turn the MODE control on the radio [6.1], or use sequential
presses of the remote’s MODE buttons [6.2] to select the mode
and then press ENTER or wait 5 seconds.