I finally finished my carputer in my E46 325 Ci cambrio.
All items were bought from mp3car store:
-Xenarc 700TSV - VGA Monitor with touchscreen and video inputs
-E46 Double-DIN Stereo/LCD Bezel
-Carnetix CNX-P1900 Ver. 2.2 Dual Output 140 Watt 12V DC-DC Regulator with third output for usb hubs CNX-P5V +5v/15 watt regulator.
-Aopen Pandora MiniPC MP945-VX Multi
-Aopen MiniPC plug-and play Power Button Cable Kit for P1900
-3 mini usb hubs
-Holux GPSlim 236 for GPS
-Benq keyboard and mouse set
-Ibus interface
-OBDII interface
After removing the plastics and the bmw original player the car look like this:
Behind the head unit we can place the ibus interface which is connected to a powered hub underneath