1. to have to spend on your car speakers, navigation announcements.
Control my music collection on the phone and listen to on the radio 2 to.
3. be able to make calls via the hands-free functionality.
Both the initial Bluetooth pairing as well as the following compounds were carried out without any problems. The navigation announcements reach the device without any problems, the music also and the handsfree works well. My interlocutor can contact me, so this claim, at least, sufficiently understand. To compound the dropouts BT connection, it has not yet come after about 1000km.
The display is easy to read. The often mentioned negatively glowing ring does not bother me personally. But that may be all factors that depend on the particular installation position in the car. The feel of the radio I think sometimes something playful to "inexpensive". Radio reception was better with the original radio. However, I had already hereafter another DIN radio inside the reception was worse than the Sony BT 3800. Thus, I would say - midfield.
Taking all factors together, there are four stars and thus a buy recommendation.