Can anyone tell me why I only hear sound out the center dash speaker. It doesn't matter waht mode 9 surrond sound,etc.) I switch to, the sound will only come out on the dash. THanks in advance

 

To me it sounds like you have the HU-801 headunit... and most likely your amplifier is dead... thus only the deck itself is outputting to the centre channel speaker, wheras the amp (located under the passenger seat) is either dead, fuse burnt out, cables shorted or became disconnected etc.. take a look at it