Popsstation and music_prx for PSP?

i have the popstation for my cfw 5.00 m33-6 psp and i also have the music_prx plugin for listening to my own music during my umd,cso, or iso games. i was wondering if there is a way or a pluging that lets me do the same but for the psx games while in the popsstation. any help would be greatly appriciated