Hello im a new owner to a 2003 chevy venture lt runs and drives great but what are these two things on top of the roof one is a antenna and another is a black type box with black and pink wire coming out which seem to be cut. Can someone help me out to pin point what the one in rear is mostly as the wires are disconnected thanks.

 

It looks like the front antenna is for OnStar, while the rear "box" is/was for satellite radio.

Mike