Circuit Description
WARNING: This page is about a different car, the 2012 Chevrolet Sonic. However, it is still accessible from the selected car via links, so may be relevant.
The AM/FM radio antenna is located on the roof of the vehicle. The radio antenna is enabled when the radio is turned on. The radio supplies battery voltage to the antenna via the coax cable. An internal amplifier amplifies the radio signals from the antenna and transmits them to the radio.