Hi, been away for awhile now I remember why I was member!! I have a 2003 2500 139,000 miles. Went out to start it, there is a small red light flashing on the lower right hand sight of dash (security I believe, however I do not have security). The truck is absolutely dead no power to anything! Trie unhooking the batteries to reset-nothing. Checked fuses-all good. I called about 10 dealers, nobody knows anything! Anyone ever have this problem? HELP, Jerry