Circuit/System Description
WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
AM and FM radio reception is dependent on the following components:
- Radio antenna in the rear glass
- Radio antenna module
- Coax cable between the radio antenna and the radio antenna module
- Radio
The antenna amplifier receives both AM and FM signals from the rear glass antenna. The radio antenna amplifier is enabled when the radio is turned on. The radio provides battery voltage to the antenna amplifier using the center conductor of the antenna coaxial cable. When a 12 V signal is seen by the module on the center conductor of the antenna coax, both AM and FM signals are amplified.