popups don't come with battery disconnect switches.
did you check the plunger switch that usually is compressed when you set up the sink area?
that would account for the interior lights.
as to the outlets, if you're currently plugged into shore power, did you check the breakers?
Dan-Retired California Firefighter/EMT
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity