Chassis stereo drains chassis battery when used for house
Newbie here....living fulltime in RV for last two weeks....loving it!
The car stereo head unit has a switch so that I can still use it even when the chassis electrical is off (no key in ignition switched to accessory or run).
I thought that meant the stereo would be powered off the house but apparently not. Last night I lost power to my speakers while the head unit appeared fine. This morning I disconnected the chassis battery hoping to reset the ABS light and later when I reconnected the battery went to crank the engine, the battery was nearly dead so I cranked using the house batteries.
Well, the stereo then worked perfectly once the engine was on so I figured that last of sound last night was due to the voltage being too low on the chassis battery.
I'm going to work around this by putting a trickle charger on the chassis battery but I was wondering if the stereo is wired incorrectly, that it should be getting power from the house?