on metal pieces?
5. check all of your windows? is there water leaking past any of them? can you feel cold air? is there condensation between the panes of glass?
my next post will tell what these problems mean and some tips on how to fix them. to your destination that you may want to check the rear seat. if you do not open the rear door again when you get out of the vehicle, the beeps will make think for a moment about what you may have put in the back seat. 