6x9" vs 6.75" Fosgate Speakers?

I am considering a new speaker set up and I'm kind of stuck..

Initially I was considering 6.75" Fosgate Punch components. It'd be awesome to get to replace the factory tweeter (I think). Still seriously considering these.

Now I'm reading all this about 6x9" speakers. Crutchfield and Amazon both say they wont fit, but ********* has a set of door mounts that supposedly allow them to. So now I'm considering 6x9" Fosgate Punch 2-ways (which doesn't replace the factory tweeter, just adds another..). Although I feel as though it would produce a very "full bodied" deeper sound than the 6.75".

And just going with Fosgate Prime 5.25" 2-way car speakers for the rear just to replace the factory junk. (This isn't the issue here but feed back on anything is appreciated.)

I already have a 12" Fosgate P2 sub with a Fosgate 300w Amp from my old tacoma so I'm attempting to stay all Fosgate (if you can't tell). And I've already installed a Pioneer FH-X700BT Receiver (so there is a little more power output over stock, although still considering a Rockford Prime R300X4
4-channel car amplifier — 50 watts RMS x 4 for the door speakers in the future if i'm not satisfied because the sub is way overpowering the mids and highs).

 

6X9 get the adaptors they sounds great and work perfectly as that is what I have.