It is not necessary to remove the dash. Only necessary to remove enough of the trim pieces to get the radio out. If you look carefully you will see what needs to be removed.
Are you asking about the trim panel above the glove box or the trim panel in front of the radio or the trim panel around the instrument cluster? Ask again telling us which panel you wish to remove.
under the right rear window trim.
Either 7 or 8, depending on trim level
How to remove the fake wood trim from dashboard
To remove the windshield trim on a 1968 Chevy Impala you will need a trim removal tool that has slides which can release the locking clips.
with a hammer
To replace the radio in your Celebrity dash you must remove the trim panel in front of the radio. If you need to know how to take out that trim piece let me know what year car you have (there are two different styles) and I will go into some more detail.
Carefully
This is a very simple procedure...all you do is pull on it. The trim piece which goes around the stereo and instrument cluster is one piece and is held in by snaps. Be careful when you are removing it around the steering wheel-it can be stubborn, but moving the shift lever all the way into 1 will get it out of the way and make it easier to remove.
remove dash trim
to remove the dash trim around the stero unit, find the screws under the ac/heater controls that are on the trim, to remove the rest of the trim you need to remove the plate around the shifter too, so take the screws out of the shifter's plate. remove the rest of the screws around the trims and you should be able to pull the trim out of place.