go to
http://www.webelectricproducts.com/
click---online instruction on the left side
under Sequential Turn Signals
choose
STS-4CH 2008+ Dodge Challenger
midway down you will see
.
REMOVAL - TRUNK TAIL LIGHT FIXTURE
follow those instructions to remove the center section.
only thing i can ad is to hit the studs lightly with a rubber mallet
where the wingnuts came off, using this method my tail-section
popped right out other wise i don't think all the pulling in the world
would have gotten it out.