Ok,
I may be missing something that's obvious to some. I do not know how to pair the PAW to the iPad, however i am using Skydemon quite happily. I have not had alerts up to this point, but have now gone into the navigation options on skydemon and turned the volume for the alerts right up to full, and pressed the test button, MUCH louder now. This was at home with the iPad, so not tested in the aircraft.
Maybe this is the problem, and now with an amplifier will be the solution.
The 3.5mm jack from the PAW is wired to my Trig radio, with an amplifier in between, very quite on the ground, I know the setup is correct because I can hear it via my radio without the iPad or skydemon switched on.
My headset is not a bluetooth version, it is a NRH, no batteries, with a 3.5mm aux in plug.
Your 3rd option, I like and will try, again maybe it has simply been a case of ensuring the traffic alerts in the volume settings was turned up. I will try and get back to this space, thanks for your understanding.
dave