I bought a plane with an ITC-404SP Stereo Panel but I don't know if it works. Internal communication is poor at best. I'm using a Bose a20 headset and my passenger is using a passive David Clark. All/Pilot switch works, but the volume doesn't seem to work well. Plus, I am not sure if the auto squelch is working as it should. Does anyone have any suggestions as to how I can troubleshoot it?
Connected radio is an XCOM 2.25 VHF radio which seems to work ok for both passenger and pilot.
Connected radio is an XCOM 2.25 VHF radio which seems to work ok for both passenger and pilot.
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