I am installing a G3X system with a GI-260 AOA, GDU-460 and GTR-200 COM radio. The GI-260 has audio outputs for audible warnings. Do I need to wire these to an input on the GTR-200 COM radio/Intercom, or are the audible warnings communicated over the CAN bus? The GTR-200 does have audio connections from the GDU-460 which is also on the CAN bus, I'm hoping that takes care of the AOA audible warnings.