I thought the same. 
 > Date: Wed, 30 May 2012 15:47:44 -0500
> From: mcneely4@COX.NET
> Subject: Re: New radio= dead battery?
> To: vanagon@GERRY.VANAGON.COM
> 
> So, I thought the radio on a Vanagon remained on, if the radio switch is on, key in, key out, key on, key not on.  Not so?  Mine does.  I have to turn the radio switch off or it keeps playing.  Does this mean that someone modified it?   I always make sure to keep the radio off when the vehicle is not being driven.  I keep it off most of the time when I am driving it, for that matter.
> 
> mcneely
>