I've looked through the manuals, and can't find any reference to an audio panel, that will let me hear the marker beacons, select com radios, etc.My radio panel (with SU1) just gives me the two com, two vhf, adf, and transponder, and the weather control, and it looks incomplete, like there should be an audio panel at the top.Am I missing something?If there is no audio panel, can I use other radio gauges instead, or are the provided ones required for the aircraft to function?

I don't know the answer, but I would like to bump this for you :)

>>If there is no audio panel, can I use other radio gauges>instead, or are the provided ones required for the aircraft to>function?I've answered my own question, and added an audio panel from the default 737 to the NG - In my extensive (5 minutes on the ground) testing, I've determined that you can now ident nav radios, have both com radios going at once, and activate/deactivate the marker beacons.An FS2004 screen shot is attached.Here's what you need to do to make it work. Neither I nor PMDG take any responsibility for supporting this.What you're going to have to do is edit PANEL.CFG in the following directories:FltsimrootaircraftPMDG737-300PanelFltsimrootaircraftPMDG737-300Panel.VCFirst (of course), make a backup of your original panel.cfg file(s).Then edit the file(s) with notepad and find the section that starts with://--------------------------------------------------------[Window08] // PMDG_RADIO_STACK_PANELEdit the section so it reads://--------------------------------------------------------[Window08] // PMDG_RADIO_STACK_PANELfile=..panel737NG_RADIO_BACKGROUND.bmp file_1024=..panel737NG_RADIO_BACKGROUND.bmpsize_mm=800,600position=8visible=0Background_color=0,0,0 ident=RADIO_STACK_PANELgauge00=PMDG_737NG_Main!RadioBackLight, 0, 0, 165, 455gauge01=PMDG_737NG_RADIOS!PMDG_737NG_RADIOS, 0, 0, 800, 600gauge02=737-400!Audio, 415,460,225 //tmm-added 737 audio panelSave the file(s) and you're good to go. -Tim