FORD 2013 Explorer v.1 - Manual (Page 402)

• 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.
• Any non-Ford custom electrical or electronic accessories or
components that are added to the vehicle by the authorized dealer or
the owner, may adversely affect battery performance and durability,
and may also adversely affect the performance of other electrical
systems in the vehicle.
402 Accessories
2013 Explorer (exp)
Owners Guide gf, 1st Printing
USA (fus)