Antenna coupler and external antenna
An antenna coupler can be used to connect an external antenna to the
car kit. The external antenna improves the reception of the mobile
device in a car. For availability, contact your dealer.
Note: In order to comply with RF exposure guidelines, install the
external antenna so that a minimum distance of 20 centimeters
(8 inches) can be maintained between the external antenna and all
persons, with external antenna gain not exceeding 3 dBi.