from page 48 of 09 manual
http://www.lancecamper.com/docs/09-owner-manual.pdf
SOLAR PANEL PRE WIRE
The pre-wire solar panel connector is mounted on the
roof of the camper near the front of the camper. The
mating connector is supplied in the loose parts box.
Two wires, 12ga blue (+) and 12ga white (-) run from
this location, are looped in the cabinet next to the
galley and terminate behind the battery compartment
for future connection to the battery.
The 12 ga blue wire must be fused with a 10-amp fuse when a solar
panel is installed.