I experienced the transponder issue for the first time yesterday. It has ran perfect in the stock location since the car came out. But yesterday I had issues. I mounted it n top of the Rx box with some double side tape and no more issues. I have one of the newer tiny transponders and the red ligt blinks so through the front window it looks like a heart beat at night. . Idk what the issue is with mounting it under a rx8 but there seems to be one.