I own a preve exec as well. your rattling dashboard is during rev the engine more than 2k rpm? or rattling all the time? I have this rattling dashboard during rev up the engine to 2k rpm from standstill but not too serious. I would rather not have the SC dismantle the dashboard and re-assemble back, might cause other problems later..my speaker dashboard at the rear also making rattling sound, going to do some DIY on my own this weekend