How to get the sound working with M-Audio Fast Track to my internal speakers.

[busterflex]

Hello everyone.

This is probably a tricky question!

I am using remotejoylite (for windows) via parallel desktop...to get my psp slim (with CFW) displayed on my mac. This is working well, but now I would like to get the audio too.
As my iMac (3,1GHz i7, 16GB RAM) just has one headphone jack line out...I am trying to use my M-Audio Fast Track interface to get the sound working with the internal speakers....But I don't really know what I have to do?
The psp is now plugged in in the M-Audio (Guitar in)
My mac recognizes the M-Audio...and I see that my mac gets the audio signal from the psp (when I look at the settings) and on the M-Audio the led is blinking accordingly...But (Stupid question) how do I get the sound playing in the internal speakers?
Do I need another programm? ...Thanks for your help

 

[satcomer]

Click on the sound icon in the Finder bar while holding down the 'option' key (or go trough System Preferences Sound panel) and choose you input and output points.

 

[busterflex]

Click on the sound icon in the Finder bar while holding down the 'option' key (or go trough System Preferences Sound panel) and choose you input and output points.

Well I allready did that (cause I often have to switch that for my headset)...but nope...this doesn't seem to be the solution.
Do I have to use any software...?
I'm using a jack to jack cable from my playstation portable headphone jack to the guitar in on my M-Audio Fast Track....