Subaru 2003 Impreza - Manual (Page 183)

IMPREZA(NA) A1850BE-A (ENGLISH)
Audio
5-16
Type B audio set (if equipped)
The radio will operate only when the ignition switch is in the “ACC” or “ON” position.
J Radio operation
(1) FM button
(2) AM button
(3) SCAN button
(4) Tuning knob
(5) Preset buttons
(6) Fader/Balance selection button
(7) Power switch, Volume control,
Bass/Treble control and
Fader/Balance control dial
(8) Bass/Treble selection button