Hi, I have a 2005 Tahoe LS and am having some electrical problems. My instrument cluster is totally dead, power windows/locks and radio isn't working either. It runs fine, no problems starting or driving. It started as an intermittent problem of the the above dying while driving and all the warning lights on the cluster would come on with a repeating chime. . Shortly after the cluster would come back to life and power would be restored to all. The security light would remain on after it restarted. Any suggestions???? I'm kind of on a tight budget right now and would like to try to fix it myself. I have a decent mechanical knowledge base and have done many repairs on my own before but this electrical problem has me stumped!