wind noise
 

hi....
i have a grand voyager w reg(2000).there is a really loud wind noise coming from the nearside sliding side door while driving.it sounds as though the door is not shut properly although when checked it is!.i have checked the seal and that seems to be in good condition and fitted properly so am a bit stumped!was wondering if this is a common problem?also,the nearside captains chair makes a rattling noise when empty.again,have checked the seat is fitted correctly,maybe something else loose within the seat?it is worse when no-one is sitting in it.....many thanks..