1WhiteOSV: not terribly difficult, just takes some scheming:
Check out Richie's (AftermathAlero) door panels also - he's running a set of 6.5" Diamond as well as 5.25" Diamond components in his doors. I had Infinity coaxs all the way around and it made a night and day difference moving to a good set of components.
Cheers,
~vR