GPS antenna, location/purpose - GF82.62-P-4107SK

MODEL 171.4 

Fig 1: Identifying GPS Antenna Location

Courtesy of MERCEDES-BENZ USA

GPS antenna, location	The GPS antenna (A2/23) installed in front is of the inside rearview mirror on the mirror base.
GPS antenna, purpose	The GPS antenna (A2/23) an active is antenna. It supplies position data to the navigation and emergency call system from the navigation satellites