I am operating a fairly new MTH K4s (30-1743-1) in conventional AC mode. I know that there are special series of short bell & horn commands that will activate the Proto Coupler in the AC mode and a few other features. Is there a bell & horn sequence on PS3 that will activate the whistle forward / reverse sound sequence???? I thought I had done it in the past, but apparently I dreamed it as I can't find it in the manual.
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