Just a quick update (in case of use to anyone)...
My original plan was to temporarily use the Carlinkit 4.0 (that I got from AliExpress) in my Seat Leon until the MG4 got delivered (in conjunction with Android Auto and my Samsung S22, in both cases).
Because it took so much messing around to get the Carlinkit 4.0 'advanced settings' sorted out to work correctly within the Leon, I opted to leave it be, once I got it to the stage where it worked reliably there.
(For reference, all of the various Video Resolution / Video Bit Rate / Frames per second / Start Delay / etc. settings, that Carlinkit Support suggested I try, didn't resolve it - I had to instead 'rollback' the firmware to version 2022.07.29.1635 from the latest, at the time, 2022.07.29.1751 - this resolved it for the Seat Leon, at least!).
View attachment 15444
I also purchased and installed a wireless charging mat, so that the phone could both communicate and be charged wirelessly - the Leon has a tray/shelf not too dissimilar to the MG4, so figured it was a good test (as well as enabling the Leon, of course!).
How it looks in the Leon (until I get around to integrating the wiring a bit better):
View attachment 15442
View attachment 15443
End result is that I simply get in the car, place my phone on the mat, and everything kicks into life!
So... on to the MG4...
I opted to purchase another Carlinkit 4.0, but this time from eBay (and a UK seller), for around £50.
Ironically, it actually took a few days longer to arrive than it did from AliExpress, but did at least arrive!
Despite the units (and packaging) appearing identical, the web UI to the new Carlinkit 4.0 was quite different (as well as being a newer firmware, as you would expect):
View attachment 15445
Anyhow, it appears to have been delivered with the latest firmware (as no newer updates available) and seemed to work fine, straight out of the box, within the MG4.
However, as others have mentioned, the Android Auto display did seem quite laggy and the icons stretched/deformed (in as much as the circular icons appeared oval).
Out of the box, the 'Video Resolution' is set to 'Auto', so I tried various other combinations (including what I understand to be the native resolution of the MG4 central screen - 1920 x 720), but none seemed to rectify the 'stretching' of the icons, etc. They also seemed to make it even more laggy!
As such, with the above firmware, at least, I'd suggest sticking with all the settings as they come, straight out of the box (including the video resolution as 'Auto'), and just accept the slight deformation of the appearance, as it doesn't seem to be straightforward to rectify (unless another, possibly older, firmware works better in that respect).
I plan to install a wireless charger pad in the MG4 also (as we have an SE), but the shelf seems to have a slightly shallower lip to it than in the Leon, so I may either need a thinner charging pad or else try and recess it into the shelf better, so that the phone doesn't slide off and out easily.
Apologies for the lengthy post, but I thought it relevant to include the detail of firmwares, etc., in case it varies from suppliers from the otherwise seemingly identical Carlinkit 4.0 devices!
I do, personally, like the simplicity of wireless charging and Android Auto connectivity (along with reduced wear on the phone's charging port and the connecting cable), even if it is sometimes a bit of a faff to get it all setup and working in the first instance! ?