a/c blend door actuator

I need to replace the a/c blend door actuator on my 97 marquis. How much of the dash has to be taken out and does anyone have any step by step directions. Wife is getting cold and I need to replace fast and need step by step directions if possible.


thanks

Look here:
http://www.automotiveforums.com/vbulletin/showthread.php?t=593833