on a 1989 Ply Reliant, how do I access the brake lamp bulb at the rear window? on 1990 Plymouth Acclaim

Do I access it through the trunk or how do I get the brake lamp cover off to change the light?
This is on a 1989 Plymouth Reliant...

Asked by for the 1990 Plymouth Acclaim
I'm not sure off the top of my head. Feel free to bring the car by and we can take a look at it for you and let you know.