excellent product, apart from some noise

I bought this unit after reading the many positive comments about him.
and I am completely satisfied. thank you to all.
the presentation is of good quality, beautiful product, great value for money.
the installation is very simple, just a clarification for vehicle owners vw group, a special connection is required option to reverse the car radio power supply. without this pin, it will be disconnected and zeroed at each vehicle start.
the use is very simple, very fast Bluetooth connection, the sound of very very good quality, the built-in microphone for proper hands-free kit.
the only negative point that I blame him, c is few noise during Bluetooth connection with my mobile (Samsung Galaxy Young). maybe it's a problem related to my car .... ?? Seat Ibiza tdi 2006 ... I do not know.
Overall I highly recommend this product