I've been thinking about this also.  I'm preparing
for a year long trip in my 84 Westy and I'm going
to mount my CD changer behind the driver's seat
vertically to the sink cabinet.  This allows me to
use the space under the driver's seat for the 
extra battery.  I also think it's less likely
to get damaged in this location and it's fairly
well hidden.

Regards,
-------------------------------------------------------------------------
Emmett "Chad"wick Bearden "It's too bright a light for anybody's eyes. If
ebeard@compuserve.com            you've never seen one it's a blessing in
Owner of "Miles" 84 Westy                     disquise." -Bob Dylan on TV
-------------------------------------------------------------------------