I was never able to find any info about inverter prep. I did find the wires from the roof top solar pass through.
So far I haven’t installed any solar but I did install an inverter. I put a 2000w renogy in the front compartment. AC power from the inverter goes to an automatic transfer switch behind the wall in the pass through storage. I also used a relay to automatically turn off the converter when on inverter power.
2015.5 Chevy 3500 DRW
2022 Impression 280RL