Aftermarket HU/Amp/Sub pics + rattle question

[BloodyChucklz]

And now my question.....

This setup gives a ridiculously crazy loud rattle in the back hatch area! I've noticed that the rear wiper blade rattles quite a bit, and it sounds like there may be something loose in the rear light fixture areas? I'll be taking care of license plate rattle today, but i'm not sure what to do about the rest of the noises? Does anybody know how to remove the plastic part of the rear hatch without scratching paint?

[BloodyChucklz]

*UPDATE*

I've got an idea of where the rattle is happening, I just have to figure out how to get the plastic panel off my rear hatch. The rattle is coming from around the windshield wiper assembly mostly (at the top of the plastic panel), with another small rattle to the left side of the plastic panel. If anybody could tell me how to get this plastic panel off without breaking the clips and/or scratching the paint it would be very much appreciated!