haha, ive just done all this to my jzx110, and once your figure it out the rear parcel shelf aint that bad...
you need to remove the rear seat, so pop the mounts on the seat base and lift out
then remove the 4 10mm headed bolts from the bottom of the rear seat upper ( one each side and 2 in the middle ) then youll need a trim clip remover or just a flat head and pop the clips that hold the seat belts in place at the top of the rear seat, then lift the seat out of the car ( easier with two people.
Next you need to remove the C pillar interior panels they just pop off, use your trim clip remover and remove the push in clip at the bottom of the panel, then gently pull it off, but not all the way ( there is a really firm clip at the top of the panel that will tear out if you yank it, so grab a pry bar and lift the panel up a little and youll see the clip, pry that off from the inside and the panel will pop right off ) then do the same for the other side..
almost there, now you have both C pillar trim panels out, you can just lift and pull the parcel tray out... then the sound deading mat thingy and TADA.. theres ya speakers!! held in with 4 10mm headed bolts.
Now the fronts, just remove the door trims as usual...
Pop the little nut cover at the front of the door trim near the dash ( there is a 8mm headed screw under it )
Pop the little screw cover off the door handle and remove the phillips screw
Grab ya flat head and pop the outer cover off the door handle ( top and bottom to remove it )
Just pop the Grab handle/window switch out ( just clips in ) and unclip the loom
Behind there are two phillips screws holding the door trim on, so remove them and your almost done
Now just pop the door trim off and lift out
The front speakers are riveted to the door, that plastic holder is the actual frame of the speaker.. so i just drilled out the rivets, and popped the speaker off.
This is where i was like now how do i mount a 6" component without it hitting the window, so i flip the factory speaker over and cut the frame of the speaker away, removed the cone and used that as my mount... suits 6" speakers perfect, and just screwed my component straight to the factory speaker frame.. Once you get it out, you'll see what i mean.
sorry i didnt get pics, but i was to caught up in just getting them in so i could get home and sleep