In reply to:

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I thought b13 had functional AF support, I thought it was 2 final that broke it.

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Well, it sort of works in B13, but the way it works is that when the signal strength becomes too low, it scans all the alternenate frequencies to look for a stronger signal. This can take up to a second or two, during which the sound is muted. In my case the stations I listen to have adequate reception along my commute, but lower than the empeg's threshold, so it does a sweep about once every minute. You can image that this gets very annoying, very quickly, especially since I mostly listen to talk radio.

2.0 final has better AF in that it looks for stronger stations continually in the background, but it has other problems that make it equally useless in my specific case.