Okay  where are you located? usa?

I have

a working power brick
 a working rasp pi
 a working 5 pin cable
 a working auc
 a working a921

it is at the new build out

I could test your

power brick
rasp pi
5 pin cable
auc
usb cord

this fri or monday as I am driving to the build out to add some m10's

if not  lets see what else we can do here.

what is the power brick you use for the rasp pi?

did you try each of the 4 usb ports on the raps pi.

do you get any connect with the a921's

I get you see the  rasp pi
I assume it does not show the a921's