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
System wiring diagram
Rear exterior lights
Digital Motor Electronics (DME)
Electronic transmission control (EGS)
Fuses in the power distribution box, front right
Body Domain Controller (BDC)
Fuse in the Body Domain Controller
Rear light cluster, right outer
Rear light cluster, right inner