'96 is well over 20 years ago. Cables are getting old. Ground points and connections have never been opened or cracked I betcha. Do yourself a favor and get yourself some good copper replacement cables and terminals from the tractor supply store. Don't buy the drugstore generic replacement cables. They cost about the same, but are not up to the task. You can try ohming them out but it won't tell you much. A few extra hundredths of an ohm is enough to leave you stranded. Remember it draws 200 amps at 12 volts!

What you CAN do is test the cables and grounds while they are under load, when they are energized, for voltage drop. Not necessarily across Pos and Neg, but along the cable or connection in parallel. All you need is a voltmeter. Set it on the lowest setting. The drop will be displayed as a positive number. Since the voltmeter is an easier path around the corrosion, it will show up on your display. Pretty cool huh?

Can start by checking the entire negative circuit by placing the voltmeter probes between negative battery post and starter case. Crank the engine over. The limit is about 0.10 volt. Then you can narrow it down as far as you want, all the way to checking say, the voltage drop between just the neg battery post itself and the neg battery terminal. Bad cables and grounds will screw up the charging system and battery too. Hope this helps and let us know what you find.