Thank you to everyone that helped me
That’s got it sorted 😀😀😀
Very happy to say the least
I stuck with the Amazon amp
Wired the pinouts to the switching power supply
The aux is still just split at the wire and soldered on to a new connector I made for the board
Separate transformer for monitor
Removed the old audio 2 board and the power brick
Really didn’t see me getting this sorted
So very happy
It may of worked if I’d of sent the right voltages to the audio 2
But I’m just happy to see it going
Thanks again guys