About 8 years ago I had financed a car with Amsouth Bank. Unfortunently the car was repossessed 6 years ago. I have not heard anything from amsouth about the car or the loan.
I recently opened a checking and savings acct with regions. I also just found out that Regions bought out Amsouth Bank and obviously took over all the loans. Well today they decided to withdraw my money out of my checking acct and left me with 2.00 stating it was an electronic debit for the collections dept. I called them wanting to know why they took money out of my acct. I told them I just opened the acct. 2 weeks ago, I can't possibly owe you money. Finally I spoke with someone and they said they took money from my acct for the car loan that I had 6 years ago. They informed me they are handling all the loans and blah blah blah. I have not heard from these people in 6 years about anything. My question is can they just take money out like that without me knowing. That seems illegal to me.

Yes, the debt for your car did not just go away, it was always there.

If you had money in the same bank where the money is owed, there is normally "fine Print" that allows them to do this.
Did you talk to the manager at your local branch, go in and talk to them.