Interesting that your 2004 manual says you cannot remove the soft top. This is from the 2000 manual under the heading of "Hardtop" :
It is not necessary to remove the fabric
top even in the winter, when the hardtop
is generally in constant use. But you
can take it off at any time with no problem.
So unless I'm misreading that, it sounds like you CAN remove the soft top. However no directions on how to do so are given.