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If it was the speaker surrounds then that would mean that the Nav Voice wouldn't work either. I know at least the speaker in the Driver Door works so technically if all other speakers were blown, that one would still play music. Its definitely the amplifier.The speaker surround might be blown. This is common problem and there is a company that sells replacement foam surround.
Well I have the Beatsonic unit now a single DIN radio somewhere. I can test this out. If it works then that would be great. I can put off replacing the amplifier with an aftermarket and doing all that extra wiring.The amplifier is responsible for the NAV voice and BT hands-free phone, so it's not likely the culprit unless every channel BUT the center driver door speaker went out. The head unit sends a digital audio signal to the amplifier where it is processed. I know it's digital because that's the only way to achieve surround sound with only four wires of input. It could still be the amp but it would have to be the signal processing chip, otherwise your head unit is what failed.
Well I have the Beatsonic unit now a single DIN radio somewhere. I can test this out. If it works then that would be great. I can put off replacing the amplifier with an aftermarket and doing all that extra wiring.
FWIW, I replaced the front 6x9's with Audiofrogs, the rear 5 1/4 with Hertz, the barn door 3" with front doorcard 3.5"s and could not be happpier with the sound. It is really very well balanced and nicely staged. If the amp is repairable you may want to consider it.
Correction: My center front speaker works fine on most DVD-A . Some discs like Steely Dan simply did not balance that channel in the multi layer recording. There has been no sound deterioration in my collected discs performance over time.ML NAV ‘09 missing center channel sound
My DVD Audio disc collection (5.1 channel sound) plays fine on unit through all other L/R front-back speakers . Previous owner did not even know what DVD-A was so I am first to play them.. No buzzing just a silent center absent lead singer/ chorus voices. Idea what is wrong and a fix?