you'll need to be a bit more specific...
- some of the plastic interior pieces do indeed just snap out.
- others are secured w/ just some basic philips or torx screws
- a few, i.e dash trim strip, is bolted from behind and either is accessed by removing entire dash and unbolting from the back-side or by prying the bolts securing it thru the front of the dash
... carefully
If you don't have a Bentley repair manual, it'd be wise to pick one up for ~ $65 to assist as there are various methods used for securing interior trim.
Good luck
