Circuit/System Description
WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
The digital audio broadcast receiver, located inside the radio, receives digital radio information from the digital radio antenna located on the outside of the vehicle. The digital audio broadcast receiver is connected to the digital radio antenna via a shielded coax cable. The digital radio antenna contains an amplifier which is powered by the radio through the coax cable.