Ford 2005 Escape Owner's Manual page 286

Accessories
• To avoid interference with other vehicle functions, such as anti-lock
braking systems, amateur radio users who install radios and antennas
onto their vehicle should not locate the Amateur Radio Antennas in
the area of the driver's side hood.
• Electrical or electronic accessories or components that are added to
the vehicle by the dealer or the owner may adversely affect battery
performance and durability.
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