HI! I have a 2000 mustang 3.8L V6 that won't start. I am not sure what is wrong. We tested the battery and starter, and both checked out fine. When it first wouldn't start, I turned the key in the ignition, it would make a click sound, and then everything died (no lights, no power locks, windows wouldn't go down, clock off, no radio, etc). My husband fixed the battery cables, and all of that fixed itself. Now when you turn the key, it makes the sound like its going to start but won't turn all the way over. I replaced the fuel pump a year ago, and the spark plugs...I have no clue why it won't turn all the way over. HELP!! I miss my car!