How do I remove this plastic clip
 

This is on the tailgate. Trying to feed wires through for reverse camera and cant get this trim off.
http://http://www.xoutpost.com/attac...1&d=1442359088

Havent had to remove that particular panel yet but I would try prying those small squares off first. They probably cover fastener heads.

I started to Pry with small flathead didn't seem to budge

That is not how you remove that trim. Check my Avin install DIY for directions.

It can be found here: http://www.xoutpost.com/bmw-sav-foru...-detailed.html

Edit: Wait, you are trying to install wires in the bottom portion for a reverse cam? Is it a license plate frame mounted camera? I believe the red reflector portions pry off. My DIY might still give you an idea of how it works, but I didn't run any wires in that bottom hatch. I did remove the trim though so maybe it will help.

Yes I'm trying to run the wires under it for a reverse camera. Looked at your link. Couldn't figure it out..

Sorry then. If you take a look at this diagram you can probably figure it out. Shows the clips and screws you have to remove.

RealOEM.com - Online BMW Parts Catalog

Got the screws... Guess I'll just Pry till it breaks or comes off .. Heh

Here you go... this will show you how to get wires in there... ran across this while looking up something else.

Pelican Technical Article - BMW X5 - Taillight Replacement