If I understand right, you have a problem with the interior light going off (theater dimming). This is controlled by the instrument cluster and there is no adjustment or "fix". If your dealer can't check the programming of the cluster, it must be replaced.
EDIT you have this in sound, and mention stereo. Is it the RADIO that is turning off?
__________________

2004 Dark Plum Base with windows tinted, cabin filter, silencers removed, fog lights, 18\'s, all Red taillights, Blaine\'s struts, modesty cover, color-matched center dash, 06 rear bumper
|