OK, how do I get this off?

[WeRJuliian]

This may seem a stupid question, but... maybe somebody else has been this route, and can help me out.

How do I remove this light fitting from the ceiling, without breaking it?
It's on a Jayfeather 19XUD, and I want to add an extra LED fitting in the couch/slide area... It seemed like a perfectly simple idea to pick up 12v from the back of the existing light (see picture)... But it seems that it's not intended to come out. Is it just jammed into the hole, is it glued on, or is it never intended to be removed, ever?

I've tried all the obvious subtle approaches...pushed, pulled, twisted, cursed, jumped up and down and yelled at it, threatened it with sticks... to no avail.

The obvious technique would seem to be to stick something long and thin under the edge and lever it out... but the panel's made of Jayco's usual pressed cardboard, and the light fitting is thin plastic, so I'm afraid something's going to break and leave me with a messy repair.

Any clues would be much appreciated, before I go ahead and break something.

[Racinforthefinish]

Stick your flat screw driver in the edge of the plastic and gently remove the plastic cover.

[jimp]

Might try a "tack puller" which is similar to a flat blade screwdriver but wider blade with a ground angle on the leading edge. Or a automotive interior panel popper.

[WeRJuliian]

OK, answering my own question, for the benefit of others.

You have to pry off the translucent plastic dome - not the surround, just the dome.
Then you can see that it's held on with two screws... and, just to prevent it being too easy, they're square-drive screw heads, so you have to remember where you put your collection of "weird screwdrivers I don't use much"

Once you get the screws out (and retreive them from where they fell, netween the couch cushions), the fitting will drop down less than an inch, because the wires are very short... and soldered, or crimped to the back of the PCB, so you can't easily disconnect them.
So, after all that, I still can't tap into the supply, without making a hole in the shelf above it... and that's what i was trying to avoid, all along !