Learned the hard way about the hazard flasher switch while removing it to replace the radio. If a guy is in a hurry to remove the wire plug from it, its possible (easy) to separate the switch halves which results in the spring dropping into never never land. At this point, the turn signals are now non-functional. If you put it all together without realizing what you've done, you learn soon that your turn signals aren't working, hopefully before the cop spots you. Just a little note to those who may be planning on a radio swap. Of course, I am getting dumber as I get older........