Not sure. It only works with ignition ON but the compressor out outlets only work with engine running. That wiring has no voltage with the ignition off.
I have a 22 cayenne turbo coupe and a gx550. They are apples and oranges. In every way...
The Cayenne is more comfortable (better seats, better suspension, ie air). The tech works better.... Faster obviously and gets better mileage. Mine has PDCC, rear axle steering and rear lockers, so it has...
Not the same duty cycle rating. I have a Milwaukee compressor. Good for basketballs and topoffs but won’t do 4 35” tires re-inflates without over heating .