Principles of Operation

PRINCIPLES OF OPERATION

Audio Unit
The audio unit can be powered up when the ignition is in the ON or ACC position. The audio unit provides audio signals to the speakers to produce sound.

Radio Frequency Suppression
The radio frequency suppression equipment reduces interference transmitted through the speakers by the engine ignition and electrical systems. When installing any new radio suppression equipment components, make sure that a good contact is made at all connections.

Antenna
The antenna receives AM and FM radio waves. The AM and FM waves are sent to the audio unit through the antenna cables.

Steering Wheel Control Switches
The steering wheel auxiliary audio control consists of a specific resistor value for each button function creating a voltage divider. When a button is pressed, a specific reference voltage is sent to the audio unit. The audio unit then uses this reference voltage to determine which control input function has been selected.