>
>
> I have a 150x2 watt amp (no built-in fan) that I'd like to locate under
> the
> driver seat

I've put a300W Bazooka subwoofer amp under my seat.  I've flipped it
upside-down to maximize the area  that's exposed to air for cooling
purposes.  It does get hot, but I don't feel it in my seat and it has not
been a problem over the last year.

Chris S.