I've had the remote for a couple of years now, and it's always been hit and miss. Sometimes it works, sometimes it doesn't work. And this can change during one drive (to work for instance). I put in a new battery and it worked constantly for about two days, then back to intermittent.What issue do you have with it? Did you see my post about the connection? If it’s off and on (which sounds like it because not sure what else the remote could do wrong) look into the connectors I got. I had connection quality issues as first too. The remote seems super sensitive. Once I went to the other style connector it’s been perfect. I drive that car every day (more or less this time of year) and the remote has functioned perfectly every time.
The other week I removed the screen, grabbed my little home made tools and removed the head unit. I then checked the wires and connections. All seemed ok (I am not using the connectors you suggest, but I may soon!) so I reinstalled the head unit and screen.
Since then it has worked flawlessly! Maybe the connection was getting stressed by the way it was crammed in there before, and now it's better? I don't know, but it's working for now so I'm not going to touch it until it fails.
It is very sensitive. I can turn the dial one click and the volume can change from 0 steps to 4 steps of volume. And the delay is a bit annoying. But, it's still way better than swiping down on the screen, then touching the Volume slider, then adjusting the volume with the slider! Man, that is a pain. Not to mention all the time spent NOT watching where I'm going!