I had a pair of these that I found 'new-in-the-box' at a VW swapmeet for a
good price years ago, and added them into my '84 GL 7-pass van.
  They are glued together and you could dremel-saw them apart.  I doubt that
you could 'easily' replace the bad speakers with something else, and I doubt
that 4" would fit.  Maybe 3"?

Good luck,
Mike B.

----- Original Message -----
From: "Tony Collins" <tonycollin@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Friday, October 03, 2008 9:30 AM
Subject: Vanagon, Rear speaker enclosures

> Hello List,
>
> I have looked in the archives, but I can not find information on the
> little
> speakers that are located in the rear upper corners of El guapo. Guapo
> does
> not have the rear AC enclosure and it is not a camper. I find a lot of
> info
> on those, but not on the little black plastic speaker enclosures like I
> have.
>
> I looked at them and was able to take the mesh grill off. What I saw was
> eaten up speakers where the woofer section was all busted up by the
> passing
> of time. Is there a way to open the enclosure and place new speakers in
> it?
> has anyone done this?  I like the keep the van looking stock.
>
> Thanks,
> Tony
>
> --
> 82 Scirocco "Rodolfo"
> 85 Vanagon "Blubrik, El Guapo"