Vehicle Shudder problems of the 2006 Ford Escape

Without warning transmission completely fails. No indication of problems, just dropped the transmission on the way to work. Thank goodness there was no traffic behind us or we were in an intersection. Just completely stopped pulling while traveling down the road at 45 mph. Transmission rebuilt. Since then and still currently the charging light stays on constantly. Has been in the automotive repair shop for a month and no one can find a problem or match the codes with an apparent problem. On it's way to a second shop for another opinion. Idles high both in park and in gear, constant vibration inside the vehicle (steering wheel, dash, console etc. ). Dash/speedometer makes humming noise in the afternoons. Alarm has randomly gone off twice and interior lights would not go out on their own - had to turn off manually. "right rear door ajar" or "lift gate ajar" messages were displayed, but the doors were fine. Message did not reset when re-closing the doors, just reset eventually on its own. Gas mileage has dropped to 15 mpg. Radio volume will not come down. Get louder if you touch it. This problem has been going on awhile, but now with everything else possibly electrically going on, don't know if it's related. We've already spent around $2000. 00 on it and I still don't feel safe to drive it, especially after reviewing all the complaints this model Escape has had. Without diagnosis of a problem, I fear it may escalate to other computer issues and cause far worse driving/safety problems. Undetermined electrical/interior going crazy seems to be a common complaint even when what appears to be the problem is addressed. I am disappointed to be having such problems with this Ford. My husband actually recently purchased a used Acura instead of a Ford because of it. I have no transportation of my own until these safety/reliability issues are resolved.