Electrical nightmare!!!!

The ammeter "all the way" is not good. Either you have a short, or the ammeter is stuck. You probably blew up the fuse link (Some later cars have more than one fuse link)

So some basics. WHAT ARE we workin on? Year make model?

Do you have the proper factory service manual?

If not, go to MyMopar and download one

http://www.mymopar.com/index.php?pid=31

While you are on that page, hit

"wiring electrical diagrams" and download one of the aftermarket diagrams posted. These are often not as complete as the service manual, but they are sometimes easier to follow