Audio alchemt DDE V3.0 Need Help

I am trying to built a power supply from 12V source to use the D/A converter in my car. I don't really know what are the pin config on the 6 pins din plug. does anyone know what each pin does?
See schematic here:
1-Do you mean audio alchemy DDE 3.0?
2-12 volt power is crummy and fluctuates too much. Don't blow your nice AA on a whim.