I've been experiencing a "chirping or pinging" noise when my QC2's are used with CO's onboard entertainment system. This constant sound is prevelant on all channels. I've polled a couple of others when on-board and they say they have heard it as well. I'm hoping that this post will provide me with some info to forward to Bose Corp. tech assistance. When I called they said no one had ever mentioned this problem. I know this can't be the case.

Thanks for your input