[pferrall]

What do I need to upgrade from manual seats to power seats on my 2019 EcoBoost convertible ?

 

[Uncle Meat]

Fastest & easiest way would be to call around to the local wrecking yards and see if they have any totaled 2015+ S550 Mustangs with the Premium Package. Snag the seats and the wiring harness out of one or two of them and install in your car. You may even get lucky and find some seats out of a Cobra or a GT350.

U.M.