Question: Is there any way to get the emulator work normally ?
Its still very slow and useless, I tried adjusting the cache size and Ram.
My system configuration is quite good, are there any tips and hints to speed up the avd ?

Answer: 
Since: API Level 5
An activity to run when device is inserted into a car dock. Used with ACTION\_MAIN to launch an activity. For more information, see UiModeManager.
Constant Value: "android.intent.category.CAR\_DOCK"
public static final String CATEGORY\_CAR\_MODE

Since: API Level 8
Used to indicate that the activity can be used in a car environment.
Constant Value: "android.intent.category.CAR\_MODE"
A number of years later... this might help someone that came looking like I did. Since Honeycomb, there are two actions one can listen for `USB_DEVICE_ATTACHED` and `USB_DEVICE_DETACHED`.