Psp Gps

[insane90]

Hi all. I'm new here but hopefully i am posting in the right section.

Basically, i have bought a PSP GPS system and a PSP with 3.51 m33 running on it.

My question is this: how can i change the sounds of the GPS system so when i'm out driving, i have custom sounds than the ones included e.g homer simpson telling me to 'turn left' etc.

Cheers

[insane90]

presume you cant. ok thanks anyway folks!