Installing CD player in Tacoma

1997 Toyota Tacoma ext. cab. Wondering if anyone could give me some quick help on installing a cd player or direct me to a website that gives that info. Not sure how the plastic housing comes off that surrounds heat/air controls and factory am/fm cassette player. any help greatly appreciated.

Hob

http://www.customtacos.com/tech/index.php?page=index_v2&id=77&c=6 there you go