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 Home | Previous messageI have recently upgraded my older Nutone IM 4006 to the new IMA 4006 master. The old IS-400 speakers are connected to the new master via the old flat ribbon style cable. I can get music through them, but the volume control does not work nor does the other features on the remote speakers/intercom. I reconfirmed that the wires at the new master are connected properly per the conversion diagram given in the install manual. 
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                       Did you resolve this? I am having the same problem. I get the sound, but the volume control doen't work. Thanks  | 
        
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