Got mine in a month or so ago. With everything going on haven't been driving enough to sort out the little issues, but it seems some others are having similar ones so I thought I'd mention what I have going on.
-HVAC works, though I didn't think to test the rear zone yet
-Sound works, though I'm having the same 'all speakers fed from front channels' issue('04LX ML). This is a bit more of an issue for me because I have some blown rear speakers and need to adjust the fade to get things to sound halfway decent at any significant volume.
-Rear camera doesn't turn on with reverse, it works when I go look for the app, but doesn't automatically select.
-Occasional fantom selections ie changing the radio station, going to next song
-A chime plays about a couple minutes after starting, no idea what that's meant to indicate
-Connecting to my phone mobile hotspot is a bit of a fuss, can take a while. Would be awesome if it could automatically connect
Overall, for something close to plug and play, I'm pretty happy with it. Any insight into the speaker channels or reverse camera thing would be very appreciated.
Also recommendations for good apps to install?