Things You'll Need
Instructions
Plug your PSP into your computer using a USB cord. Set the PSP to USB mode if it is not there already.
Insert a music CD into your disk drive and allow your operating system to recognize it. With only Rockstar Custom Tracks v1.0, you must use store-bought CDs, but with Exact Audio Copy PSP Edition, you can use burned CDs as well.
Launch Rockstar Custom Tracks, which will recognize the CD immediately. You can view the files and choose which ones to transfer from a list.
Click the transfer button and choose "Vice City Stories" from the list of options to transfer songs to. If you have multiple "Grand Theft Auto" games on your memory stick, these will all appear as options.
Access the "Vice City Stories" pause menu, expand the audio tab and change the "Custom Tracks Off" to "Custom Tracks On" by clicking it.