Good to hear, im in same boat with s4 active, are you using the pioneer android kit?
Sent from my SAMSUNG-SGH-I537 using xda premium
Yes the kit has many parts its not just a cable as I expected. Made me feel a bit better about the hundred dollar price tag. I connected the power converter and the MHL cable to the head unit at one end and at the other end to the little "junction box" that has the single micro usb connection that connects to the phone. (Micro or mini whichever one is most common in phones now. I always mix up the names)
It works great, does seem to take a few minutes to connect when I get in the car in the morning. Today I got snow two or three times intermittently in the first five minutes of driving but then it seemed to link up completely and was solid. There are definitely a lot of improvements that can be made, but for pre beta its just absolutely awesome. I look forward to the hw buttons working and basically being able to put the phone in the glove box as right now there is no way to go home for instance, without the phone. Spotify is my number one used app and it works great, as well as google music and the music player on the HTC. I even played a video stored on my phone tonight, an avi, got no sound not sure why yet but anyway could not be happier.
As a quick side note/question, I seem to remember the google turn by turn navigation voice coming through and decreasing the volume of whatever was playing, giving her instructions and then restoring the volume. As it is now, the music is muted or paused, she speaks, and the music is restored. I prefer her talking over the music, as the pausing every few minutes can get distracting. I cannot seem to find this option anywhere in any settings. Is this something that was changed in fw I wonder? Minor thing and I usually just mute the voice anyway but I would be interested to hear if anyone has anything on this.