Ford 1999 Mustang Owner's Manual page 204

Customer assistance
The Federal Communications Commission (FCC)
and Canadian Radio Telecommunications
Commission (CRTC) regulate the use of mobile
communications systems - such as two-way
radios, telephones and theft alarms - that are
equipped with radio transmitters. Any such
equipment installed in your vehicle should comply
with FCC or CRTC regulations and should be
installed only by a qualified service technician.
Mobile communications systems may harm the
operation of your vehicle, particularly if they are
not properly designed for automotive use or are
not properly installed. When operated, such
systems may cause the engine to stumble or stall.
In addition, such systems may be damaged or
their performance may be affected by operating
your vehicle. (Citizens band [CB] transceivers,
garage door openers and other transmitters with
outputs of five watts or less will not ordinarily
affect your vehicle's operation.)
Ford cannot assume responsibility for any adverse
effects or damage that may result from the use of
such equipment.
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