SV_IREG_LEFT_AUX2
SONICVIBES_DOUBLE("Aux Playback Switch", 1, SV_IREG_LEFT_AUX2, SV_IREG_RIGHT_AUX2, 7, 7, 1, 1),
SONICVIBES_DOUBLE("Aux Playback Volume", 1, SV_IREG_LEFT_AUX2, SV_IREG_RIGHT_AUX2, 0, 0, 31, 1),
snd_sonicvibes_out(sonic, SV_IREG_LEFT_AUX2, 0x9f);