P&A Upgrade molex connectors for BOOM! AUDIO... it's the amplifier connections. They are sitting directly on top of the amp tray under the front fairing.
If you follow them down, you will see they are part of the connection harness that run into the head unit just below the amp tray in your pic... just left of the USB marking
The top all black one might be the one the hidden antenna plugs into
Does it have a removable plug or a cap on it ?
If it's a removable plug then thats the one for the antenna.
Been a while since I installed mine so don't recall exactly what it looked like
I was wrong here is a picturer I borrowed off the web of the one I was speaking of.