I don't think location for subwoofers is particularly critical as those
freqencies are non-directional and penetrate through things pretty well
(hence the less helpful comments on the installation concept). I don't know
the dimensions of your "tube", but one option might be to locate it under
the rear seat. Careful placement might not even interfere with the ability
to lower the seat, and you will save the space in the rear for cargo. I
mounted my CD changer under the seat early on, positioned to fit between the
seat frame members when the seat is folded up, and have been quite happy
with that.

=Vic=
Bear Gap, PA

"Bob" > wrote in message
...
>
> My reasons for installing a sub are very simple. There is no way even
> good quality 5x7 speakers (I have Boston Acoustics) in the doors can
> reproduce anywhere near *natural* bass. I am not into playing my
> system so loud to cause hearing damage or bother other drivers. I also
> did not do it to "look cool"...I am well past that point in my life.
> It's very simple...I did it because I enjoy good sound.
>
> Now, does anyone have any suggestions for placement of the sub without
> a lecture attached? :-)
>