Quick questiona bout hook up for triggers 360

I’ve read alot of the guides, and think I have it figured out. I have a cheap Joytech controller (Start and Back waay to the leff) and most of it has been straight forward. I found the pot, and verified that I get change on the triggers. I go from a ground to the bottom of the pot so that when the buttons not pressed on the joystick. It’ll go through the pot. But when I press down it’ll be wired to the bottom of the pot, giving a digital low and a button press?