Dodge 2006 LX Magnum - Manual (Page 128)

To install the tonneau cover first insert either of the
spring-loaded outer posts followed by the opposite end
into the front attachment points shown. Next pull the tonneau cover using the handle and insert
the rear posts by following the guides along each side of
the rear compartment making sure the cover is fully
seated.
Front Attachment Points
Rear Attachment Points
128 UNDERSTANDING THE FEATURES OF YOUR VEHICLE