I did the speaker bar on my 96. It wasnt too bad. Granted a little easier than doing it with the whole board at the same time.
Couple tips:
Go get yourself a cheap toilet brush from the 99cent store. Snap most of the handle off, and chuck what remains into your cordless drill. Easily removes your old foam/glue
Also,you will need some adhesive. I used a mix of the 3M heavy/light headliner adhesive. Try and concentrate the heavy stuff around your speakers, as getting them to conform to a funny shape isnt as easy.
when you are ready, set up two trash cans to hold the board for you, triple check you have enough fabric to run over all sides a few inches (you can always trim it later). Fold the fabric in half and glue the first half down (using a few coats of glue on both surfaces. Up, down, and diagonal both ways) Its like a sticker, work from the inside middle toward the outside, chasing any bubbles. Then repeat for the other half.
Might want to recover your sun visors while you are at it!
Good luck!