I think I may do a combination of suggested things:

-glue plastic ring to the dash
-attempt the find a tighter receptacle for the hole or somehow modify the
existing receptacle to be tighter
-run a larger gauge wire over from the fuse box or batt.

Thanks for all your suggestions.

I am curious though about Jerry's plug:

>The lighter socket in my '88 Westy was missing the lighter, but when I
>tried to plug in the lighter from my '90 Westy, I discovered the socket
>was much deeper.

Anyone else have a non-standard lighter socket?  Are the later models
just different?

Thanks,
  Tolga