I also remember a YT video of Francesco Francy who had this rattle and found out that it was the jack that was positioned in the wrong way.
If you have one, it's a quick check.

No...

Yes, a Dutch QQ forum member has the Sinosmart for several years now and is really happy with it. On my previous QQ I was also looking at a Sinosmart which is not only more affordable than the Dasaita but the flat design on the back seemed easier to feet as well. I'll see if I can get this member to...

A bit late...
As I always had J11's the DAB was already there so I changed nothing.
I hesitated though to install a shark fin on my J11a but then the DAB would be lost or less and before doing this mod I swapped the car for a J11b.

I know
And in the workshop manual they point out if there is a difference between LHD/Russian models/RHD no?
I just wanted to jump in to mention that on the right there is nothing for LHD. I remember that I noticed this difference in a UK YouTube vid before and I was like huh???

Exactly. on the LHD you only have the fusebox on the left side I think. On the RHD you have fuses on both sides and also behind the glove box I believe?
This said, you are absolutely right that the fuses you mentioned should be verified.

There are fuse boxes on both the front cabin left and right side (pax and driver region) panels. The doors cover them when closed near the hinge points. It's different on LHD cars I think. Didn't saw any fuses on the passengers side. ;) https://i.ibb.co/37rVP89/Aantekening-2022-10-27-090206.jpg

Not with the roof bars but with I cord I managed to scratch the paint once. I guess there should be a rubber liner in the roof bar attach to protect the roof rails and maybe it's missing or it was folded in some way. Also I noticed that you don't have to force that much when you attach the roof bars...

One in every door (so 4 in total) and a tweeter in each corner of the windshield / dashboard.