How to read off of host device through PPC

[mikldom]

Ok.. I have a PPC-6700, in a mount attached to my dash, I also have an older Fujitsu Tablet PC mounted to my dash using as a Carputer with GPS, etc.

I also have a Dual Head Unit with Full Bluetooth functions.

I can stream and remote control WMplayer on my PPC from the radio, but, I want to be able to access files/music from the Tablet PC..

Is there a software or program to allow me to 'browse' or map to my tablet pc's drive when plugged in via USB?

Basically, I want my PPC's WMPlayer to be playing MP3's off the computer that the usb is plugged into..

How to do this?

Thanks!!!
/mike