4 x 6 speakers

Anyone fitted any of the below speakers in the standard speaker/door pockets on an 89 cab (front)

Kicker 43CSC464 4 x 6
Kicker 44ksc4606 4 x 6
Rockford fosgate T1462 4 x 6

or what else 4 x 6 have you fitted.

Did they require major work to fit.  Already have the alpine ones, they are old and new ones would be an improvement but as I am only planning on upgrading them once, may as well spend a bit more.

Thanks for your help

j