Intercom Question

It didn't have anything for the microphone plug
though, so she couldn't talk to us, she could just listen in on our
conversation.

A regular microphone (the aviation kind) work in the microphone plugs of
an intercom (at least all the ones I've used), and the push-to-talk
allows the person to talk (on the intercom) but not transmit (test this
first on your setup!). The mike can be passed around in back.

Jose
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