There are sticky posts that will help you with that. A shop manual will help you too.
The top piece on both is embedded in a groove in the gasket - the stainless trim is T shaped and fits in the groove. So you can't remove those pieces without removing the glass. You either need to push the gasket off the pinch weld from the inside (if it's still pliable), or cut the gasket with a box knife (if it's hard or you're going to replace the gasket anyway).
In the back, the bottom pieces are held on by spring clips, and they come right off with a putty knife or better yet a tool made for this.
In the front, the bottom pieces are held on by clips and by the wiper escutcheons. Two of the clips are fastened by nuts under the dash. The shop manual is your friend on this.
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