Joe, a little more detail for you:
After you pop out the grills, you will see an allen head screw down low and deep in the corner on each side. Remove these. Also pop up the trim around the key switch. It'll just pop up. Then pull up and back on the whole dash enough to loosen so you can get at the connector under and in front of the display. That's about it. You'll see that their will be one speaker screw that is tough to get at. You can kinda pry the speaker box downwards to get at it.
Stuff the boxes with pillow stuffing before adding in your new speakers.
Hope this helps some.
Take care, Eric