I have just fitted a fitcamx into my 2018 G30.
The installation videos make it look easier than it really is.
There isn't that much to it but it is very fiddly.
The hardest part for me was dismantling the existing cover on the mirror. It was a very tight fit with little room to maneuver and it was also very difficult to reassemble once the camera was fitted.
Don't let this put you off, I'm just saying it isn't as easy as it looks in the video, you just need small hands and lots of patience.
Once it's fitted, download the app t0 your phone and off you go.
It's very easy to operate and the picture is superb.
The best thing of course is the OEM look.
It's not the cheapest dashcam on the market but it works fine and it looks perfect.
