After searching, measuring and listening to MANY 6x9s, I found a pair that fits the front doors of my 2003 Camry LE with a custom MDF bracket. I wanted coaxials to improve the point source imaging -- having dash tweeters reflecting off of the windshield never produced a coherent image. Also I am running a Sony HU with 22wx4, so I was looking for SQ without going the power hungry component route.
Enter the Pioneer TS-A6961R. I know many look down on Pioneer 6x9s, (and most do sound BAD), but after demoing 6x9s (including Alpine S and R, Infinity Ref, Sony Xplod, Polk db, and Eclipse) this particular TS-A6961R sound very musical. Even the models up from this one -- A6971 and A6981 -- sound poor. Clean, clear, smooth with good bass. Very balanced sound and efficient, sounding fine with HU power. And inexpensive ($50-$80/
pr). A real gem among consumer level 6x9s. Downsides: these sound overdriven with an external amp and are not truly neutral in timbre (very few 6x9s are).
And they fit the front doors (barely) of my 2003 Camry. The top mount depth of these are 2 7/8" which makes them more shallow than most. I used a 1/4" hardboard to fashion a custom bracket which aligns to the existing screw mounts. Sandwiched a 3/4" MDF 6x9 ring that will be the speaker mount. Keep the shape of the ring close to the speaker shape so as to not interfere with the door panel. This custom "sandwich" bracket clears the sheet metal by 1" which combined with the thickness of speaker flange, just butts up against the plastic oval ring formed into the door panel. (No pictures, sorry! Those who have tried to replace the Camry fronts understand...) The speaker magnet just clears the window -- no interference at all.
I disconnected the dash speakers which were crossed over with a simple capacitor. The Pioneers are running full range.
How do they sound? Very similar to the demo on the store's sound board. Smooth, clear and the imaging is improved, though skewed slightly toward the center of the dash. Musical and very listenable. Bass integration with the rear stock speakers is fine.
Next -- replace the rear with these Pioneers...