Sidescroller aiming with controller around a central point(The Player)

Hi there, I’m currently working on a 2.5D Platformer/Shooter game and i want to get controller support for the game implemented quite early, I have got a small targeting reticent sprite that i plan on using but i want to be able to move it around the screen using the right stick on the 360 Controller. Any ideas on the best way for me to implement this feature?