Blaupunkt Component Speakers
Those eclipse look nice, but I actually found another pair that fit quit well in the stock mounts. Thet are component speakers (separately mounted tweeters with a crossover), so you get much better sound, especially since the FJ80's dash-mounted speakers are so weak on the high end (not suprising since they are pointed at the floor).
I used Blaupunkt 5-1/4 component speakers in the front and back and they sound great. They are made with the magnet located in front of the speaker instead of behind it, so the mounting debth is shallow enough to fit in the rediculously sized FJ80 mounting holes.
Unfortunately, I just checked Blaupunkt's web page and they don't appear to be making them any more. I put mine in about three years ago. But, it looks like they may be available on e-Bay or as closeouts if anyone is interested.
However, I would recommend adding an after-market amp if you wany to go this route. You will need the extra wattage to get these speakers to do what they were made to do. I am running a 740 Watt amp with a 12" Infiniti sub in addition to my two pair of Blaupunkts and it sounds great.
Always glad to see others improving on what is the only glaring weak part of the 80--the stereo system.