intercom question

GE wrote:
I recently purchased my first a/c, unfortunately it only has a 2 place
intercom. I don't really want to go through the trouble of installing a four
place intercom for the few occasions that I take backseat passengers. I have
looked (online) at the portable intercom systems but I am not sure how they
connect and if they will be compatible with my current intercom. Do these
things just plug and play? Any experiences that you can relate will be
greatly appreciated.

G.R. Patterson III wrote:
I have a Flightcom two-place portable. It plugs into a set of radio jacks. If one
were to plug it into the passenger jacks, you would sort of have a three-place
intercom system. You could pick up a four-place portable and wind up with a
five-place intercom system. Keep in mind that the more electronic units you chain
together, the lousier the sound quality will be. Also keep in mind that, if your
existing intercom and radio system has a PTT for the right seat, all your passengers
will be broadcasting if that PTT is used.

A possible problem with daisy-chaining intercoms is feedback into the
intercoms and/or radio when transmitting.