the "stick" needs to be mounted to a body screw or some other nearby screw. I don't have a pic here at work but there is one that mounts the radio plate on mine, pull that screw out, slide it in the round end and screw it down.

the other end (not the rounded one) goes into the front of the muffler, there should be an allen screw in there, back it out a bit and put the end in there. Lemme draw up a quickie pic for ya..be right backk