Have I bought this adapter to not always get in the car need to set Navi or adapter for the radio. Since the current consumption in the area 400 moved with me to 700 mA (as it should be at most longer operations), the heat development remains within limits. All in all an optimal device, as long as you do not permanently go to the limit. Car tut's also not good if you always drives at full throttle. I can only recommend this part.
