Well, one of the rear deck speakers in my '06 coupe went out. I really didn't want to put a sub in the trunk at this time. I got a killer deal on an set of Infinity Reference 6500cx (3ohm) components. I removed the bose junk and made a 6x9 to 6.5 adapter out if .220" lexan.
I only installed the mid bass component. I measured the ohms of the stock speaker and it was 2.4 ohms. Then I measured the Infinity and it also was 2.4 ohms. All should be good. It sounds decent. Nothing to write home about, but no more rattle.
I installed a set of Infinity Ref 6502ix in the rear side locations since I had everything apart. They are 3 ohm as well.

My plan is to replace the factory amp and put a sub in the trunk. When I do that I remove the component from the rear deck and install them in the front doors.

If anyone has any questions, feel free to ask.

 

from 1-10 how hard was it to remove the rear deck speakers?

 

I would have to say it's about a 3. It's not hard, you just have to be careful removing the trim. Watch out for the little things like the screw behind the "srs airbag" emblem on the upper b-pillars. Also you don't have to remove the upper portion of the back seat, but it helps to unbolt it and push it to one side or the other to make more room getting the lower trim panel out.

 

Awesome! thanks! ill try and do it today! if you have a manual you followed or some DIY that would be great! thanks for responding!

 

I didn't follow anything, but I can give you a quick rundown.

1. Set in the rear seat, reach down and pull up at the bottom of the seat to unhook it. It takes a little bit of effort and you will hear it pop up. Do this on both side. Then remove the seat bottom. It might get hung up on the seatbelt buckles, just work them through.

2. Unbolt the two rear seat shoulder belts where they attach on the floorboard under the back seat. (14mm).

3. Remove the 4 nuts that hold the rear seat back hinge to the floor board. (14mm). Fold the seat back down and remove the two plastic push pins that hold the seat back carpet in the trunk area. Then lift the seat back off the mounting studs. You may need to push in on the trim close to the hinge so the hinge will clear. I left the seat back in the car and just slid it over as I was removing the trim panels. You may be able to get the trim panels out without doing this step, but I just did this to make it easier.

4. Unbolt the driver and passenger seat belt from the b-pillars. (14mm). The bolt covers pop open from the center.

5. Pull up on the rear portion of the door sill trim to unhook it from the rear trim panels.

6. Pull the portion of the door seal out of the way that covers the edge of the rear trim panels.

7. Remove the lower half of the rear trim panels by pulling out. The are held in with several plastic clips. Work you way from the front to the back. Remove from car.

8. With a small screwdriver pop out the two small covers that say "srs airbag". There is a bolt behind each one. Remove the bolt. (10mm or #3 Phillips).

9. Remove the upper trim panel the same way as the lower trim panel. Once you get the trim panel loose, you will need to remove the trim ring where the seatbelt passes through the upper panel and feed the seatbelt through the hole. This will allow you to remove the upper panel from the car.

10. Remove the plastic push pins that hold the front of the rear shelf. Pull up on the rear shelf to unclip the two plastic retainers under the shelf. Then pull out on the rear shelf trim. You will need to work it around the two child seat anchors. Once you have it almost all the way out, disconnect the connector for the third brake light if you have one. Remove shelf from the car.

11. Unbolt the 4 bolts holding in the rear speakers. (8mm)

Hope this helps. I don't think I forgot anything.

 

I can pretty much guarantee that the time spent removing any part of the rear seats that gets in the way will be saved by not having to work around them. Plus, they're out of the car and safe, instead of inside where you're crawling all over them with tools and such.