Hi, I have an 06 with the Monsoon and side airbags as well, and what a pain in the butt it is to get the back deck a part. Crutchfield sent instructions, but they weren't too clear. I did get it all apart and put new Infinity Reference speakers in the back and they sound terrible. Please let me know how yours come out. I think this is something with the Monson amp.
To get the rear deck cover (Top pad) out, you need to do the following:
1) You need to remove the 2 back pillars that go along the roof line. You can do this by pulling off the small Airbag plastic inserts. They are little circular plastic pieces that say airbag on them. There is one on each side. Underneath there is a phillips screw holing the piller up. Once you remove the screw, you can pry off the piller. THere is only 1 clip holding it up, plus the screw that you ned to take off. Once you pull them off, there is a little rubber strap that is about 3" long that is still attached. I just left this on and was able to move the piller around to get the rest apart.
2) Fold down the back seats and unscrew the 4 bolts that hold the grey hold down piece in place across the top of the back seat. You will see this once the seats are folded down. Once you get these out is the tricky part. There is one push in type plastic clip on each side of the back mat that is aout 4-6" down from the top of the deck and is behind the part of the seat that is left when the seats are folded down. You need to pry behind the seat to pop these loose. Again, there is one on each side. I destroyed one getting it out, bit the other came out ok. Once those are loose, you need to flex the back deck by pulling it up from behind where the seat would be. Bow it up in the center and work each side up. Once you get it past the back support piece the whole top deck piece will pull out and you can get to the back speakers. I hope this helps.
Please let me know how your speakers come out. Mine sound terrible. I am looking for some advice on bypassing the amp all together.
