I've just had the Halo 9 fitted and they fitted a new external mic (only just noticed it a few days ago lol).
Initially very happy with the unit (the sound in particular) but I'm having a couple of issues and I intend to go back to the fitter about them
Firstly a couple of minor quibbles - I find that I miss having a rotary volume knob - I hadn't realised that I used it so much and I am still reaching for it, usually when I want to turn the volume down quickly. I suppose I just need to retrain myself to use the SW controls or those built-in to the unit.
Another thing I've noticed is that the volume doesn't automatically reduce when reversing, like it used to. I'm guessing there's nothing can be done about that?
More seriously, I'm starting to get screen blackouts, like a dropped connection, happens both during CarPlay and radio and seems to be getting more frequent. On one occasion the unit seemed to reboot itself.
Also the radio reception is a lot poorer than it was. To be fair, the fitter said that it might be an issue and that he could fit a windscreen aerial if it was.
Finally I had the USB retention kit fitted but these just won't cooperate with various different USB leads I have tried.
@Absolut5 on here suggested trying using a good quality USB A to C adapter and that worked for a while, but now doesn't...