First, ensure your empeg is using the Hijack kernel.

Edit the config.ini file from the empeg (might be able to do this from the emplode program, or jemplode, or otherwise ftp it from the player to a PC, edit, and ftp it back again.

Ensure the file has these two lines (add them if missing):

[output]
notify=1


And for good measure, also ensure it has these:

[hijack]
suppress_notify=0


You can experiment with slightly simpler and easier-to-parse output by changing that line above to this:

[hijack]
suppress_notify=2


Cheers