For Vegas/Axis owners who want to copy the suggested install process, note that the original AIMs 1200 watt inverter with auto-transfer switch is no longer available on Amazon at the $180 price.
So now you may need to spend upwards of $400 for a similar unit with matching remote.
Just make sure that whatever inverter you purchase...it comes with the auto-transfer switch.
Here’s an example of one:
https://smile.amazon.com/AIMS-POWER-.../dp/B074CL21FS