I don't know much about Westys, but I mounted my big amp under the
passenger seat in my 90GL.  Ten years later it is still running
strong and doesn't get that warm.You likely have swivel seats, so
that may not work so well.  I built a shade tree console in between
the front seats that hoses my CD changer(yeah, old school), but I
don't see why you couldn't mount the amp under a console if you left
ventilation room.  A semi-annual removal for cleaning would be good
and still keep the unit close to the battery.  That's about as
creative as I can get with minimal experience with westys.

DM&FS

  At 06:49 PM 10/16/2009, Ralph Channell wrote:
>Hi.I'm having a rough time deciding where to put my amp in the
>Westy. It's driving me crazy!I have a large amp 75W x 4, about
>13"x10"x2". I secured it to the top of the box for the rear heater
>under the bench seat. Then I ran into problems trying to keep the
>amp power line and the signal line from getting close to each other
>so as to avoid any noise. I was thinking under the driver's seat,
>but I'm worried about the heat buildup. Does it really matter if the
>power and signal lines get close if the signal lines are shielded?
>The only option seems to be to run them behind the cabinetry. I
>don't want to spend lots of cash on wiring to the back if it's not
>going to work.Any ideas you could give me would be much appreciated.
>Thanks,Ralph'90 Westy