I have a i'come A24 which clips in a holster on the instrument panel in my Auster, runing on genuin icom head set adaptor leads to a 9v battery intercom and a ptt switch on the controll stick,and I have a externally mounted arieal on the top of the roof. Works fine with all the different headsets I have used in .
And it works ok if you put a single headset straight to the radio missing out the intercom.
Austerwobbler
