Hummer 2005 H2 - Manual (Page 228)

P (Power): Press this button to turn the system on or
off. The rear speakers will be muted when the power
is turned on unless your vehicle is equipped with
the Bose
® audio system.
u (Volume): Turn this knob to increase or to
decrease the volume. The left knob controls the left
headphones and the right knob controls the right
headphones.
SRC (Source): Press this button to select a source:
radio, cassette tape, or CD.
x
SEEK
w
: When listening to FM1, FM2, AM, or XM1
or XM2 (if equipped), press the up or the down arrow to
go to the next or to the previous station and stay there.
This function is inactive if the front seat passengers are
listening to the radio.
When a cassette tape is playing, press the up or the
down arrow to go to the next or the previous selection.
This function is inactive if the front seat passengers are
listening to a cassette tape.
When a CD is playing, press the up arrow to got to the
next track on the CD. Press the down arrow to go to the
start of the current track if more than eight seconds have
played. This function is inactive if the front seat
passengers are listening to a CD.
PROG (Program): Press this button to go to the next
preset radio station set on the pushbuttons on the main
radio. This function is inactive if the front seat passengers
are listening to the radio.
When a cassette tape is playing, press this button to go to
the other side of the tape. This function is inactive if the
front seat passengers are listening to a cassette tape.
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