Indeed it is. Or was. Thanks mcneely. 

> Date: Sat, 1 Jun 2013 14:40:49 -0500
> From: mcneely4@COX.NET
> Subject: Re: Installing rear seatbelt on drivers side
> To: vanagon@GERRY.VANAGON.COM
> 
> there is on my '91.  mcneely
> 
> ---- Jeff Palmer <jpalmer@MYMTS.NET> wrote:
> > Is there a plug in there?
> >
> > > Date: Sat, 1 Jun 2013 14:20:26 -0500
> > > From: jpalmer@MYMTS.NET
> > > Subject: Installing rear seatbelt on drivers side
> > > To: vanagon@GERRY.VANAGON.COM
> > >
> > > 85 Westfalia and installing the three point belt from Gowesty. Looking for the anchor point. How do I find it without tearing up the back is the storage compartment?
> > >
> > > Thanks
> > > Jeff
> > >
> >
> 
> --
> David McNeely