I didn't program the empeg until now but I'm sure it will work to get information from the serial port. But there's another problem: the serial is used by GPSapp, I need five or six more ports for all the things I'd like to do. Maybe a manual switch would work. Then, quite important for me, I have to check if this chip (the 323) will work with my Corrado VR6, but I'm quite sure it will. My next steps are:
1. Build this circuit board with the 323 chip and test it with windows.

2. Get information about howto get/put information from/to the serial port of the empeg, maybe it's more tricky than with Linux at a normal PC.

3. Hope I'm not alone here because I have to learn programming the empeg from the scratch...

Rolf