If you’re talking about the Airman 780 (I think that’s the model) lightweight headset, it will work. I have been using one for many years. It works by using the microphone bias voltage that is always present even without an intercom of any sort.
And let me just say this in favor of ABX: We wrote enough safety reports about communication problems due to having to shout over the noise of the packs that they put the hot mic intercom in all of our aircraft. It latches the yoke PTT switch in the intercom position. Some work better than others at squelching the background noise when nobody is talking, but it’s really better than having your headset off of one ear and shouting all the time.