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So this "New to Me" Aerobat is turning out to be the project I was expecting. The (most likely original) audio panel in it is basically... inop (old Radio Systems Technology panel). It came with a KMA 24 which I now know is also inop and not worth installing.

So I am looking for a used audio panel which is in decent shape to replace the ancient one which is in there now. What do I really "need"?

2 place intercom, 1 or 2 comms and at least 1 Nav. Marker Beacons would be great too.

Let me know if you have something gathering dust in your hangar!

I'd check E-Bay. This kind of stuff is on there all the time.

A lot of folks have been re-doing their panels over the last few years and you might get lucky if someone has removed an audio panel that you could use.

Like most stuff on E-Bay, buyer beware.

If I were doing over, I would put in a two place intercom and two NAV/COMM radios. Most of the ILS's around here have decommissioned the marker beacons, so it might not be worth installing those. Our 150 has marker beacons, but they haven't flashed now in a couple of years. If you are going strictly VFR, one radio would be good enough, especially if it was one you could listen to two frequencies.

Even for IFR, I think something like the PAR200B (https://aopa.org/news-and-media/all-news/2021/june/pilot/pilot-products-ps-engineering-par200b) and maybe a Garmin 175 would work. If you went this route, you may also want to install an older NAV/COMM for ILS in emergencies.

I believe it is now FAA policy to no longer repair marker beacons when they fail. They have all but gone away in many parts of the USA.

That being the case and if all you needed was Intercom and listen to the COMM radio - newer radios come with the Intercom built in. Or if you want to keep older radios going - there is always something like a SIGTRONICS Intercom.

I have a used PS Engineering PMA6000M that you can have if you don't find something else you like better. It is a mono audio panel with marker beacon. Just make an offer. I replaced it a year or so ago with a PMA7000 that was a slide-in replacement and has Bluetooth.

E-Bay has one listed for $700, but just make an offer for whatever you'd like to pay.

Thanks Henry! Let me do a little research on that unit and I'll get right back to you. Might be a good fit for the time being!

I'm also going to look at that PAR200B. Like most things in life, it's more than I really want to spend right now... but all good points about the Marker Beacons going away.

That would give me 2 Comms with one being a Comm/NAV for now.

Ultimately, I have plans to add a Garmin 175 or like GPS, add another G5 and pull the Vacuum System. I think with that set up I'd be done.

Plus new brakes, engine overhaul, new paint... Well, I'm sure I'm not the only one in this position!

OK. Hopefully the attached manuals have all the details you need.

I have a Garmin GMA-340 Audio Panel if interested.
Gordon Cragg
(713)-502-7274

Thanks, Gordon, but I don't need an audio panel. I'm happy with what I have.

I can't seem to find my old panel. Maybe Vince can use the GMA-340.

Copy that Henry. Thanks for looking.

Gordon, I might be interested in that audio panel… I’ll send you a PM.