The problem is the thickness not the diameter -- I recently put new 4 inch
speakers in my front doors. I have an 84 Westy -- had to take speaker grills
from an 85 and up to allow a little more thickness --- and then grind the
window winders so they would clear the new grills.The 84 speaker grills are
flush with the door and the 85 and up ones protrude about 1/8". I see you
have a 91 GL so you may have power windows --- so depending on where all the
wiring and switches are you have more room --- still the thickness that is
the problem.

Cheers,
Doug
On Tue, Apr 6, 2010 at 9:20 AM, Michael Sullivan <sandwichhead@gmail.com>wrote:

> Can anyone tell me the mx diameter of speakers that can be installed in
> front doors?  I will mount from the back so I can get bigger than 4"
> Thanks.
> Michael in San Antonio
> 91GL AT 'Gringo'
> 73 Beetle
>
>
>  ---------- Forwarded message ----------
> From: Michael Sullivan <sandwichhead@gmail.com>
> Date: Sun, Apr 4, 2010 at 9:44 AM
> Subject: Stereo Upgrade Project
> To: vanagon@gerry.vanagon.com
>
>
> I know iI have brought this up before, but have a few extra bucks this
> month
> and would like to get going on this stereo upgrade.  In the interest of
> planning ahead, I would eventually like to have an aux battery to run
> laptop
> and incidental stuff.  I would also like a jumpseat behind the driver. IMO,
> it makes sense to tackle the battery first to be able to incorporate the
> amp
> and stereo stuff and have them run off the aux battery.  So a couple of
> questions:
>

--
http://www.dougalcock.com