dear sir , i am getting my transition from atr 42-500s to a320s and am using telex 750, i am wanting to buy a20s bose but dont know which ones with the connector plugs are needed, with the telex there wasnt any batteries needed so i went online and saw the panel powered option with the a20s ,any help guys??
i dont want to make an investment of 995 and get the wrong plug.