I wanted to be able to completely turn off the power to the entertainment system.  It is probably not much, but still a constant parasitic draw. Plus, I hated the light at night also. I installed a simple 12 volt automotive toggle switch on the incoming 12 volt power line to the unit. it is in a block that also carries a curtain rod to separate "the bedroom".

You can install the switch easily.  It is a simple on/off 12 volt automotive switch. turn off the battery power, unplug the trailer and turn off the breaker for the entertainment system.there are 4 screws that hold the entertainment unit in place-one at each corner. it takes a long screwdriver. when you pull the unit out gently, there are a lot of wires connected. I placed a 5' stepladder in front so the unit can sit on top of the ladder while working on the wiring. Nothing has to be unplugged.  there is one red wire with a 12v tag on t that is the power wire.  Simply cut this wire at least several inches before it enters the unit.  then add red 6" wire pieces to each end of the newly severed power wire. solder with heat shrink tubing  or  use other types of connectors that you prefer.drill a hole in the upper face stile of the cabinet and install the switch.  Hook one end of the new lengthened red wires to each terminal of the switch.

Here is an example of the switch

https://www.amazon.com/DaierTek-Toggle-Terminal-Automotive-Position/dp/B07T3K9NQ1/ref=sr_1_18_sspa?dchild=1&keywords=12+volt+toggle+switch&qid=1627265606&sr=8-18-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUE2U1FCWklLMVpOQkUmZW5jcnlwdGVkSWQ9QTA1ODcxOTU2TzVKUUc2Q1I2R1kmZW5jcnlwdGVkQWRJZD1BMDYzMDkyMDE2UkJLRUhTN1I2NFomd2lkZ2V0TmFtZT1zcF9hdGZfbmV4dCZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

Vann

The light intensity can be turned down; at least it can be on our 2017 (AKA late 2016 RP179).

so, after getting home from the last trip i parked the pod and moved it out of the way (deliveries etc).  I thought I had everything turned off but passing by this morning I heard the CO detector chirping away. I believe this is normal for when the power is low, but I'm mystified as to what might be the cause. It seems like everything was turned off when it got parked but sure enough, not only is the CO chirping but none of the interior lights are coming on, indicating the battery is low/spent.  i'm plugging it back in, which gets the lights back on and stops the chirping, but now I'm wondering what's drawing power when everything appears to be shut down.

Any ideas what I should be looking for/checking?

david