I used very dense foam to hold mine in place.  It was such a tight fit that it did not move.  Not ideal but it worked for me.  BTW I take the aux. battery out when not camping as it runs my Subaru.  It is one of those Canadian Tire Spiral cell batteries.
 
Pascal
'84 Westy

________________________________

From: Vanagon Mailing List on behalf of roger sisler
Sent: Mon 26/09/2005 4:11 PM
To: vanagon@GERRY.VANAGON.COM
Subject: auxillary battery hold down?

Does anybody know about these things? Can I use one form another venicle? Vendors dont seem to have these, but sell the kits to hook up another battery. Has anyone made one themselves?I haaave the threaded hole under the drivers seat, but thats it.Thanks

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