KX155A
We had a nice new KX155A fitted (box 1) to make us FM immune and IFR legal in our nice Private Cat Arrow.
But the intercom volume on box 1 is deafening. Box 2 (the old KX170B) is fine. The folks who fitted the KX155A don't know how to turn down the Intercom volume on it.
Anyone know anything? It'a "bog standard" Arrow III apart from the new radio.