Took the panels off today to get an idea of how much room I have to work with on my install. The cutout is standard for our 6 x 8's. The depth from the surface where the current speaker mounts flush against to the back window is 3" give or take several 32ds.

The stock speakers are horse chit.
chek out the "do not use if dropped" on the back. That's Ford quality ASSurance for ya
check it out

John E