i saw some cool tail signal lights off of an EM today. i dont have a pic but i remeber how it went. it was turning right and the signals were on, and instead of the normal , click.click.click pattern, it was like a pulse that held afterwards. so it was like click.click and on the 3rd click its lights stayed on then it slowly faded away. is this something you can do on any stock lights or is it a aftermarket thing?