Ok, so I am having major problems with the electronics with my '97 Jimmy. First, my radio display and digital compass blinked when I turned on my left blinker, then they blink when I applied my brake, now I notice that my rear running lights are abnormally bright and my top horizontal brake light is on with my running lights. And, my cruise control now mysteriously does not work. All of this happened in the last few days. Anyone have any ideas as to the root of this problem? Thanks for the help.