FORD 2011 F-550 v.4 - Manual (Page 59)

AUDIO SYSTEMS
AM/FM stereo system (if equipped)
WARNING: Driving while distracted can result in loss of vehicle
control, accident and injury. Ford strongly recommends that
drivers use extreme caution when using any device or feature that may
take their focus off the road. Your primary responsibility is the safe
operation of the vehicle. We recommend against the use of any
handheld device while driving, encourage the use of voice-operated
systems when possible and that you become aware of applicable state
and local laws that may affect use of electronic devices while driving.
The AM/FM stereo system does not contain rear speakers; only front
driver side and passenger side speakers.
Accessory delay: Your vehicle is equipped with accessory delay. With
this feature, the window switches and radio may be used for up to
10 minutes after the ignition is turned off or until either front door is
opened.
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4
6
CLK
AUDIO
5
1 7
3
Entertainment Systems
59
2011 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)