So I haven't had time to get to any of my big projects but I did get one small one knocked out this evening. Picked up some Rockford Fosgate speakers for the dash and door. Nothing fancy but after seeing the stock door speakers while replacing my passenger side mirror I figured anything had to be better!
Punch P132 3.5" Coaxial Speakers - DASH
http://www.amazon.com/dp/B001P86SP2...UTF8&colid=3NG5QKJ9P4R4L&coliid=IF79QTP8596KV
Punch P1692 6x9" Coaxial Speakers - DOOR
http://www.amazon.com/dp/B001P86SE8...TF8&colid=3NG5QKJ9P4R4L&coliid=I122YNVMTWPGG7
Install is very straight-forward. Use a small flat head screw driver and pop the dash panels above the speakers off. There are 4 fittings holding them in place, they pop out very easily, just make sure you pull straight up so you don't damage them or snap them off.
Once you have the panel removed you will see the stock speaker and bracket. Just unbolt the bracket and the speaker comes out with it. (In this photo the bracket bolts have been removed) You will need to unclip the stock speaker harness to pull it all the way out.
I then cut the Toyota speaker harness off the stock speaker and soldered it to my new speaker.
Now the new speaker is quite a bit larger than the stock speaker. It is in fact quite a bit larger than the bracket holding the stock speaker as well. What I did (And this seems to be the common approach) is re-use one of the stock bracket bolts and then just used a self tapping screw to anchor the other side. The speakers ended up sitting nice and flat and are quite secure with no rattles.
The only other thing you will need to do is remove the cone from the bottom of the dash panel. It is just a plastic peice attached with some little plastic rivets. A couple snips with some dykes and they come right off. Once done, snap the panel back on and enjoy.
I would reccomend installing one side and then turning on the stereo and setting the Fade to the Front and then using the balance to compare L/R stock vs. new. The sound quality difference is astonishing!
This took me a solid hour to install in my apartment building garage including two trips up the elevator to solder the harnesses. I was also taking my time and doing a little trial and error. In a proper garage with everything on hand you could easily knock this out in half that time.