You sure its the camera or just the preinstalled mount? Without the camera, its just a smooth curved plastic cover. With a camera, you would see the lens and there would be a little stub antenna sticking up on the right side (and you would also have gotten the monitor - apparently they are pre-paired so should be no setup involved). Power is from running lights so hook up your TV and turn on the lights.
2015 Rockwood Signature UltraLite 8282WS Platinum, GY Marathon LRD, TST 507RV TPMS
2005 GMC 2500HD CCSB D/A, Curt E16, Prodigy P2, Garmin RV760LMT w/BC-20 b/u cam