Currently I use a Firestick and run it thru my TV so I can see the Amazon Music page and select what music I want to listen to. I do use a HDMI splitter and run a Digital coax into my receiver.
Is there a way to do this using the Wiim Pro ?
Not really - you select music either in the Wiim App or use the mobile amazon music app to cast to the WiiM. The fire tv amazon music app doesn’t support casting, although there are indirect ways where you could get a display of what’s showing on your tv screen.