I was looking at some video clips that I shot at the Seattle stop of the Get Amped Tour and I noticed something strange as one of the cars pulled up to the curb. There is a rapid strobe that can be seen on the while LED lights on the same side of the car as the active turn signal. Look at the car that pulls up to the curb and you'll see what I'm talking about (especially when the car pulls into the shadows).
http://www.youtube.com/watch?v=xD7_I3KqQNI&feature=plcp
http://www.youtube.com/watch?v=xD7_I3KqQNI&feature=plcp
http://www.youtube.com/watch?v=xD7_I3KqQNI&feature=plcp
http://www.youtube.com/watch?v=xD7_I3KqQNI&feature=plcp