Just picked up my 2020 Transit Crew and have the rear A/C unit in the back. Wondering if anyone has wired the rear A/C to run off a house battery so it can be used while parked? I'm a newbie and have been doing a deep dive in wiring. I have a single battery but looking to get and additional battery / isolator / possibly inverter rather than Goal Zero as alternate power source. I'd like to take advantage of the rear A/C since we're in a hot / humid area. Any previous experience / advice is appreciated!