Step 6: Software part - Test of the player itself
Please upload some modules to the Raspberry (scp is the easiest way) and try to play some:
You can use alsa and amixer to set up volume by and other sound adapter settings by your needs.
If you can play modules from command line now please proceed further.
!Please contact me in case of any difficulties with steps above and I'll try to figure out and/or update this how-to!