Looking to mod my LC Optimus Prime

Hey everyone, this may be a first post but I'm no means clueless.
Recently I've been thinking over the lights in the LC Prime. They're yellow, but in the packaging artwork, they glow blue:
http://www.parrygamepreserve.com/images ... derB_M.jpg
I've been doing a little disassembling of him, and I've removed the legs from his base, so I've got just the body and arms, but I'm having trouble getting at his "core." I unscrewed the "clip" on his lower back and the two screws at the top right of the bulge on his back, but I can't seem to get anything to budge.
I also undid the one screw on his head. It's kinda coming apart, but it seems something might still be holding in place at the base. I'd try splitting it more, but I'd rather not risk breaking something.
And on a fun unrelated moment as part of my introduction, I present an unholy combination of the two never-ending shows with giant robots:
http://img.photobucket.com/albums/v469/ ... 000599.jpg
Recently I've been thinking over the lights in the LC Prime. They're yellow, but in the packaging artwork, they glow blue:
http://www.parrygamepreserve.com/images ... derB_M.jpg
I've been doing a little disassembling of him, and I've removed the legs from his base, so I've got just the body and arms, but I'm having trouble getting at his "core." I unscrewed the "clip" on his lower back and the two screws at the top right of the bulge on his back, but I can't seem to get anything to budge.
I also undid the one screw on his head. It's kinda coming apart, but it seems something might still be holding in place at the base. I'd try splitting it more, but I'd rather not risk breaking something.
And on a fun unrelated moment as part of my introduction, I present an unholy combination of the two never-ending shows with giant robots:
http://img.photobucket.com/albums/v469/ ... 000599.jpg