This accessory is the cheapest way to have Bluetooth in your car. Obviously, with the approximately 10 euros it costs, it is not the best for using it to communicate through calls. On the contrary, though, it is perfectly satisfactory as a system for choosing which songs you want to listen to, as long as you find a frequency that is not used by a radio station.

If you find a radio frequency without interference, it's great. (I use 100.9 in Thessaloniki)