Hello
making for this is still ongoing. 
I tested the monitors yesterday. It has two 15 inch, one 7 inch, and one IPAD2.
As expected, these fit perfectly into the cockpit panel.
The Low Volt Warning LED also works, all of which are powered by Air Manager 4.0.
Low Volt Warning LED is works and matched perfectly with JPLogistics Cessna 152 Mod.
You can see it in two pictures.
Although it is not on the panel, Marker Beacon (O.M.I) also works well with 3mm LEDs(Blue, Orange, White)
For Marker Beacon is Ralph from Sim Innovations did a wonderful job! 
Best Regards,
Younghoon