the trim panel that surrounds the radio comes out.
Be carefully pulling the panel.
Step 1: put the transmission selector into low gear.
Step 2: get your fingers in behind that trim panel down at the bottom
by the gear selector, and pull it, it'll probably be tight--but it pops out.
After that you can see the screws the hold the radio!
Hope this will help you

!!
you need a wiring harnes and a dash kit, check this ;
http://www.crutchfield.com/S-RiJgXg9...roup.asp?g=750