Has anyone successfully set up their electronics such that the background chatter sound fades while the voice mic and ICOMM is used? I've heard people say the ICOMM and chatter background (e.g., MP3) just play simultaneously, but I'd like the background chatter to lower when I'm talking. Is that possible? Thinking of getting a background chatter system for my UKswath system, but wondering what peoples' experiences are using ICOMM and a background chatter system. Many thanks. FTE!