You have to convert your .mp3 files into a compatible format for gta, so you'll need this
, just drag your .mp3 files into the converter and once it's finished converting it will be [song_name].wav just change that .wav to .gta and drop all converted songs into the folder you create in step two.Step 2
Now you need to create a folder in "SAVEDATA", find your VCS game save folder and copy it's name to the new folder, but add "CUSTOMTRACKS" to the end of it and add all your converted songs into that folder. Now enable custom tracks in audio and you should be ok.
I didn't explain it the best, but hopefully you'll understand me.
Found this, http://boardsus.playstation.com/playstatio...ding&page=1