In a message dated 5/26/00 10:52:45 AM Eastern Daylight Time,
katya@NETINS.NET writes:

<< 3  Did this model have heated mirrors or something?  I've got 4 holes
 > with screws in them below the mirror on each door in a square box
 > pattern  and trying to figure out what is "supposed" to be there.
 >
 > heated mirrors were an option on 86 and later, but they had only THREE
holes
 > (and two of those were the same as the non-heated plastic mirrors on the
 > 80-85 models).

 Since this is an 89 I thought maybe that the  original heated mirrors
 were bigger or something??
 Also the screw holes are only about 2.5 to 3 inches apart in a perfect
 square.
  >>

ALL power mirrors are heated on vanagons.
those other 4 holes are courtesy of the PO mounting some aftermarket
thingamabob on your door.
chris