Just use credit card or something thin
Just use credit card or something thin push clip in and pull housing down comes out no need to pull headliner to get out.
I built a removeable cargo cover. Pictures are attached. Anybody interested in making it it's about $40 in material. If you're handy:
1x2s
plywood 2x4 sheet
4 stove bolts and knobs
a piece of carpet
assorted screws