Main unit
The main unit is central to the Saab Audio System and is located in the center console. The radio, cassette player and CD player are integrated with the main unit. The main unit also contains the controls for the various functions of the audio system.
The main unit communicates with the various other units and systems via the car's bus and wiring harnesses.
The radio module in the audio system is an AM/FM receiver with PLL frequency synthesis for the precise tuning of stations. It is factory-programmed to the frequency bands (2 x 6 AM and 3 x 6 FM) used in the various markets. If there is a loss of power (e.g., the battery is removed), none of the preset stations will be lost.
The audio system fitted to cars for the EU market incorporates RDS radio based on the double tuner system, which improves the quality of RDS reception and RDS radio services.
The cassette player is front-feed. The mechanical functions are fully microprocessor-controlled to reduce the load on the tape. Auto-reverse, track search and blank skip are included.
The CD player is front-feed with display for the compact disc inserted. The disc drawer holds 1 disc (diam. 8 or 12 cm). Random play and scan functions are included.