About a week ago the radio in my '04 S500 no longer mutes when the navigation system calls out a command. I haven't changed any settings that I know of and I've read as much as possible in the literature to no avail. I've even tried restoring Factory Defaults in the radio.

Any ideas or suggestions?

Thanks for your help!

David

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2000 Honda Accord V6 137k miles

1972 300SEL 4.5 98k miles

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