How do i reinstall the stereo

The instrument panel cover (and therefore the radio bezel) is fastened to the dash frame with snap-clips which cannot be seen with the instrument panel cover installed. To remove the instrument panel cover and gain access to the radio cavity, remove the radio fuse from fuse panel located on the driver's side of truck (the one that has a thumbnail opening and is triangular shaped), visible when you open the driver's door. Then set parking brake all the way down, put key in ignition and turn to "on" but not "start" and put gearshift into "L" position.
The snap-clips are located at the upper right corner, lower right corner, upper left corner, lower left corner and a few places in between, behind the dash cover over the instrument panel. You don't need any tools, just put your fingers on the seam of the dash cover and the the dash body, and pull firmly toward you until the instrument panel cover pops out and GENTLY so as not to break the instrument panel cover, continue until the instrument panel cover is loose from the dash and resting on the steering column. The headlight switch, and 4X4 switch (if equipped) remain in the instrument panel cover and will have to be unplugged to remove the instrument panel cover from the dash completely. This is a snug fit, even with the gearshift in "L".
The aftermarket radio bezel will have two screws at the bottom under the radio on the dash frame. Remove these screws, and remove the aftermarket radio from the radio cavity in the dash. The factory radio has two guide pins on the back, and the electrical connector is made into the radio and again in the back of the radio cavity. Simply slide the factory unit into the radio cavity, firmly seat it into the connector and guide pin sockets, and re-install the two screws you took out earlier.
The instrument panel cover re-installs the reverse of removal, and to seat the snap-clips, simply strike the cover sharply with the heel of your hand over each clip location. The dash will pop right back into place, and you will never know that an aftermarket head unit had ever been in there.