gs350lex

I basically have this random noise (it sounds like something is moving around, I will try my best to get a video of the noise) near the rear sunshade area. Its intermittent and
I know its hard to give suggestions without some kind of video to actually hear the noise but any suggestions as to what you guys may think it could be would be great.

I'm going to have a look at the sunshade but other than that not really sure where else it could be coming from.

Thanks!