INtersted myself......This just started for me the other night.  
 > Date: Wed, 30 May 2012 06:03:04 -0700
> From: david_vickery@YAHOO.COM
> Subject: Key Out - Door Buzzer On
> To: vanagon@GERRY.VANAGON.COM
> 
> I have an 87 westy, recently the door buzzer is going off with the key out, lights off and the door open.  As I understand it, it should only buzz if the key is in or lights on.  It is intermittent and if I wiggle the speakered relay it will stop/start (or maybe I am moving another wire back there while wiggling the relay).  Also while driving the other day the headlights did not come on.  Turning them off and back on fixed that.  Obviously there must be a wiring problem. Is this a sign the headlight switch is going bad or could it be the buzzer relay?  If anyone knows where to look first I would appreciate it.
> Thanks,
> Dave