nice truck ur gonna love it. I have installed a few stereo on those nnbs, from ur interior shot i can see ur interior. Its basically a pretty single, just pull the dasn piece from the center air vents. Its a clip on lip 99-07 but its not all the dash, just the center section. Getting it to clip back on is not that much of a pain. If i recall radio is held by 4 screws

 

Nice truck!