1995 Lincoln Continental 4.6 Litre 150,000

My Car has a wiring problem. We can not seem to see what is causing the problem. We have replaced the ignition swicth. What it is doing is the alternator is making juice but the juice does not make it to the Battery? So there for it is not charging. We have replaced 4 alternator and now it is not actually burning them out. It just is notv working properly. Have you ever heard of alternator problems with a lincon? I now there maybe a 500 dollar relay to but I have no idea which one it is. I am very frustrated anything will help. :Evil: :evil: :evil: :evil: :evil: :evil: :evil: :evil: :evil: :evil: :evil: :evil: :evil: :evil: :evil: :evil: :evil: