Turn it into a functional Bluetooth speaker? Ok... let's flirt with this idea more.

This could work. It works well on the breadboard and sounds decent. Adding a 3D printed sound board for the speaker will help too.

The BT module needs 5 VDC so a dc-dc converter will be needed. The blue board is a step down board as a place holder to see if there is room for all these extra shenanigans.

The amp runs great on 3.3 with that speaker. The amp and BT module while playing music only draws 30ma. The LED draws 20ma. 50ma seems reasonable for an SAO?