Off-side window rattles (Symbol Plus)

We have quite a few rattles in the back from the window blinds and the panels to which they are somewhat attached.  Searching on here, I found that this wasn't an uncommon problem!

So I took the trim off the sliding door, removed the unit, added some extra screws and the occasional sticky pad or bit of foam tape, which I think should improve things quite a lot.

But now I'm wondering about the right-hand side. It looks as if the trim around the window above the sofa goes behind the overhead cupboards, and behind the panel to which the magazine-holder is attached...  and my instinct is to try and persuade my dealer to look at it under warranty rather than attempt it myself!

But I thought I'd ask on here whether anyone has done this themselves.  The dealer's a fair distance away...

Quentin