A front panel driving apparatus for a car audio system comprises a main chassis, a slider base fitted inside the main chassis, and a slider. A plurality of roller structures are provided for promoting a more stable motion of the slider. The roller structures are formed between the slider base and the slider. A front panel is opened or closed by translating vertically when the slider moves back and forth. A lower end portion of the front panel is hinged upon a front end portion the slider. Projections that are protruded from both upper ends of the front panel are mounted inside generally vertical tracks of a front frame that is attached to a front of the main chassis.