I don’t think there is any such fitting software named A&M (AURORA).
Sivantos (aka Signia, aka Siemens) says We offer hearing aids branded Signia, Audio Service, Rexton and A&M.
So I think that you will need to use the appropriate version of Connexx fitting software paired with a version of A&M-Fit Database. Where do you find a version of A&M-Fit Database? I dunno. Let us know if you find it.