ok - i was looking around for some new speakers for my 95 max gxe (no bose), and i looked through crutchfield.com and i found these Rockford Fosgate FRC2206U speakers (6.75 in) and it says that they will fit the front doors but they wont fit on the rear deck - is there any particular reason for this...... I know that all the speakers in my car are 6.75 inches.....???