[Smokey]

My special secret, released for a fee lol.

Wasn't too difficult actually, I had initially planned to wire the switches to the media keys on a keyboard but space would have been an issue and the keyboards are no longer green boards so not so easy!

So.... I have stripped a USB, 4-button mouse.
Wired the forward and back motions on the wheel to mouse switches 1 to 4.
Using Hydramouse or similar, reprogram the mouse clicks to be volume up/down and track up/down.

This means when I press back on the left one it is a left mouse button click, which in turn puts volume up. Press forward and it is a right mouse button click, which puts volume down.

The same is done on the right wheel switch and the other 2 mouse buttons.

Is this something you plan on doing yourself? If so I can knock up a diagram.