The battery dies over night and I have to jump it every morning just to get it to work.
Battery won't stay charged. What can I do to fix it? on 2001 Ford Mustang
You either have a battery that will not charge fully needing replacement, a charging system failure not charging the battery fully, or a draw in the system causing the battery to drain overnight.
Sounds like you need a new Alternator, alternators are easy to install, this is what is causing your battery to lose it's charge. Had this problem myself on another Ford.