Hi I have a 2002 Lexus Ls430 and yes no sound checked the fuses and replaced the amp a pioneer amp . still no sound . I get a display from head unit and my cd and tape deck work . when I move the volume control does it show a number on how loud or soft the volume should be ? I have disconnected the battery both cables for more than 5 minutes to maybe get a radio reset ? Thanks everthing else works at 286 thousand miles !!!