It's going to have a DB-9 connector with a simple pinout, +12v, GND, audio left, audio right, and an optional indicator LED. When it's powered up, you can look in your iPhone or other bluetooth-enabled music player, and it will show up as a device you can pair with. When not paired, the indicator will blink. Pair, enter code 0000, and the indicator will go steady. At that point, any music you're playing will stream to the device. Wire the device into a music input on your audio panel, and you no longer have to have a dangly wire connecting your phone to the panel!
It's something I've been wanting forever, and the only thing I've seen that can do it is the PMA-8000BT, and I'm still not 100% clear whether it works for streaming audio or only as a headset for making phone calls. I know the Bose A20 bluetooth only allows the headset protocols, you can't stream music over it. Plus, the PMA-8000BT is $1200 more than the PMA-5000EX, which is what I bought for my panel.
Boards will be a couple weeks, but when I get one put together I'll post some pics and demos. Also, I'm going to make cases for them on my new 3d printer
CJ
CJ