Install a true power inverter in place of stock?

[Buyer2021]

So, just for grins, building on the post by @SALEEN961, I looked at the connector diagrams to find the wire gauges used on these inverter power circuits in the 2022 model year 400W inverter implementation:

Using standard calculators for ~12VDC and ~120VAC wire ampacity with some assumed lengths of runs tells me that all of those wires are sized only for the input & output amps of a 400W inverter with no 'excess ampacity'.

IOW, IF one wanted to remove the OE 400W inverter and install even a minimally higher-output inverter in its place, ALL of input (~12VDC power to the inverter) and output (~120VAC power from the inverter to the outlets) wiring would need to be upgraded.

Yeah, that could be done but it'd be a big wiring PITA, IMO.

As I already learned it's dangerous to assume anything, but IMO it's likely the same would hold true for the 2021 model year implementation (I don't have a source to check the 2021 wire gauges).

Bottom line - if ya want more than 400W / ~3.3A of 120VAC out of an inverter your (IMO) 'sensible solution' is to leave the OE 400W system in place and go with a totally separate / redundant higher-output inverter system of your choice, either 'clip-on' or 'hard wired'.

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[SALEEN961]

The only safe assumption with factory wiring is that it will almost always be the bare minimum that is required and not the minimum that is recommended for continuous use. The 20 and 18 gauge speaker wires used in our trucks are a great example of this.