I spent a day trying to get my Samsung Note 4 to connect to my 4100nex, either android auto or mirrorlink, no dice. Problem was the cable. i had gone on ebay and bought an "aftermarket' CD-MU200 cable, which is just a 3ft usb extension and a 3ft microusb cable. well long story short after pulling my hair out I swapped the microusb with one I had laying around and guess what, worked right away. so not sure what the difference is but bottom line is try a different cable if you are having problems, may need larger gauge wire, shielding, who knows.
