I have those rear speakers that came stock in 83-86.5 Vanagons.  These are those speakers that were mounted right next to the rear hatch.  They look like a black pod that comes from the ceiling with the speaker inside.  These are new, VW.  They include the bracket to mount it to the ceiling and have a grey grille.  These are $9 each.  Please email me if you are interested.  

Thanks,
Ken Wilford
John 3:16
www.vanagain.com
Phone: (856)-765-1583
Fax: (856)-327-2242