Trunk Tail Light Replacement

I have a 1990 GL 1500 and one of the lights are out and I can't figure out how to replace it. I pulled the carpet up, but there is no access panel, only two places that look like they have been siliconed. Are those screws that hold the light bar? Just looking for help. Thanks!

Jeff, have a look @ this thread to see if it helps

[url]https://www.triketalk.com/forum/threads/23339-Replacing-brake-light[/url]

That is exactly what I needed! Thanks for your help!