how did you check the fuses? there is 2 fuses for your radio..one is hot at all times and one is switched..always test fuses with a test light on both sides of each fuse with the key on..fuse positions are in your owners manual,fuse position,numbered,fuse size,with pictures!
RepairPal Certified shops can diagnose and repair your 2004 Lexus SC430. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.