hey guys , I been getting this rattling sound some where on the front passenger side , either roof or some place , its getting annoying , sounds like a nut or bolt is loosing , and making a vibration sound when I get up to 5th and 6th gear around 50km-60km

any of you guys have this problem and possible places of cause ?

Yeah I have that problem. RS200 A/T. For me its in the drivers side. Seems to be coming from the pillar between the front and rear right doors

do you know how to fix it ?

XnickX had a thread about this some time ago.

we have the same... befuddled as to what it may be but it seems to be under the bottom of the seat belt *somewhere*
one day i will get around to having a look for it, but at this stage i use the "make the stereo go louder so you can't hear it" method.

if you find out what the problem is and/or how to fix it please let us all know