FW28Z: you were correct. The 2015 Thor ACE 30.2 has a coach battery use/disconnect switch by the entry. I had it switched off. When on or in use, the stereo and back-up cameras work. When disconnected, the generator must be running to use the stereo and backup camera and other coach items. I had the RV parked until tonight, so I was just able to check now. Thanks again for your help.
__________________
|