How about a driver that allowed a PC numeric keypad to be connected via the serial port? You could have codes that meant "next track", "go to track N", "album N", etc..

That would allow control of Empeg units that are hidden away in the glovebox, under a seat, etc.. I could certainly use that as there isn't room in my other car to put another Empeg cradle but I'd like to be able to use the unit in that car.

Cheers,

Mark.