Forgive odd musings, I'm an RN and Vader has kind of troubled me for a while.
Does he indeed even still have external genitalia? I'm thinking, if so not much. Is he permanently catheterized? If so, why does he need this huge opening in the codpiece? Which is not even in the right spot for men or indeed, any human?! Would he not do much better with the lower body armor worn by clones and Stormies? A little plate that pops off seems much easier for catheter maintenance. Or even for regular men without catheters.
If he's missing much or all of his regular equipment, shall we say, no wonder he is Force-choking people and killing people left and right: he's probably in considerable pain and angry about all his physical losses, not just this. He needs a urologist consult, not this janky-@ss armor that hurts him and that he can hardly see out of.
As he's being fitted with that horrible armor he begs dead Padme' to help him. Imagine how he's hurting. I feel so bad for him. Give him some damn Flomax. Palpatine is really just the worst.