The G30 has different antenna systems, depending on the optional equipment:
G30 Antennas overview
Telematic Communication Box 2 (TCB2) (hotspot, emergency GSM antenna)
Roof-mounted antenna (GPS antenna, telephone antenna, SDARS)
AM antenna
FM2 antenna
Remote control receiver
FM1 antenna
Bl
General information
Depending on the mobile phone and the installed
apps, the following contents of the mobile
phone are transmitted to the vehicle:
Contacts.
Short messages.
Data transfer can take several minutes.
Certain functions may need to be enabled by the
mobile phone provider or service