I don't think there is a way to keep them out really..
not a practical reliable one.
  I have always kept some of those yellow boxes of mouse poison around ..
and put those little boxes in  nooks ..say behind a rear tail light.

I do this in sheds, shops etc...like under a workbench somewhere..
never see any dead bodies or anything  .  It works.

On 8/6/2012 4:50 PM, Geneva Saint-Amour wrote:
> If they are dancing on engine cover, you should turn down the music.
> And get a cat!
>
>
>> Date: Mon, 6 Aug 2012 16:23:21 -0700
>> From: wyndotte@GOT.NET
>> Subject: mouse profing
>> To: vanagon@GERRY.VANAGON.COM
>>
>> Does anybody know where mice get into the Westy? I can see from their
>> dirty little footprints) they spend a lot of time dancing on the left
>> top side of my engine cover, but there doesn't appear to be enough
>> space for them to crawl up along the ac hoses, but once there they
>> follow the hoses up along the back of the cabinet.
>> Has anyone solved this problem?
>> Thanks for this informative forum.
>> Dav
>