Damn'd Dash

Have had 6 Darts over the years; rusty beaters all. When I had the chance to learn and tool around on them I squandered the opportunity. Now i have a nice one. Not mint but all original. 48k miles. I dont want to screw anything up.
Radio died. Replaced all fuses. No luck. Figured id pull it out and see whats what. Cant get the damd thing out. As a kid growing up in nyc in the 70's you'd run into the store for milk and the radio would be gone in minutes. What gives. Took all the srews out and cant get the trim off. Do t want to break it. Anyone got the simple fix I'm missing?

Also anyone know what this tube I'm pointing at in the ash tray is? A fuse for the radio maybe?

Thanks