Summary: Lost nearly all functionality in this unit. Only the radio and CD player work still work. Sound quality is fine but not spectacular. Turn wheel is very sensitive. Sometimes the volume goes up when turned to the right, other times is goes down. Backlighting is much too bright and creates eye fatigue. There is no option to adjust this. Vehicle warning sounds were also altered by this unit, such as "Door Ajar", "Seatbelt Unbuckled". They are very loud and obnoxious now.
Summary: I LOVE AVIC-D3'S I BUY THESE FOR EVERY SINGLE CAR I HAVE EVER OWNED! VERY USER FRIENDLY. HAS MANY FEATURES, PLUS MANY OPTIONS YOU CAN ADD, SUCH AS REAR CAMERA AND BLUETOOTH AS WELL AS IPOD HOOKUP.
Summary: I have no complaints about this product. It has everything a headunit should have. I've been using it for nearly 2 years since my purchase without any problems or headaches. I don't think you can get a better unit for the price. Definitely bang for for the buck. I highly recommend this to others.