vaughan, welcome to irv2
Take a flat blade screw driver and place blade under rim, twist screw driver and hold with finger what you begin to pry loose work blade around rim and be careful because it will pop of as you work it around rim. You could use two screw drivers if you can't hold rim with fingers.
Remove screws and spk will drop out of ceiling, you may just have a loose spade clip. Now you can say I knew that all the time just had to check it out.
If you would, to make it easy for everyone and yourself post your coach info in the "signature" block of your profile and the info will follow you when ever you post.
ALSO I can make you a member of the Newmar Forum I'll just add a little karma to make it offical.
Enjoy the forums on irv2 and return often and ask as many questions you want plenty of people to help you.
"007"