Chrysler Repair: 96 Sebring:intermittent loss of electric power, intermittent loss, attachment point

Question
Sir,
I have a short somewhere but where to look. Seems like a relay. My car will run for months then all of a sudden will die. No lights nuthing. Then I jump start and it may run for months again or 5 minutes. Have had alternator, battery, starter replaced still does the same thing. Mechanics say he cant trouble shoot if it aint doing it, which it usually wont when i take it there. This cars engine is so good, no oil drips, starts on the first turn, lots of power. Just this issue that makes it so unreliable. Now when running, no sputtering, nothing but even the shake of closing the hood will make it turn off instantly. Would it be economical for me to replace wiring harness or fusebox? hope you have heard this complaint and have some insight for me.

Answer
Hi Robb,
I would check the wires attached to the - post clamp of the battery. Follow them to the place where they are attached and check that the attachment point is not corroded and that you secure each to its point tightly. You also could check the wires from the  + post clamp similarly, but disconnect the - post clamp at the battery first so you aren't handling hot wires. If could also be corroded terminal/clamp interface at the battery, or it could be an intermittant internal open circuit inside the battery. Those are the possibilities for a total shut down as you describe.
Sorry for the delay in ansering your question which was referred to the "pool" where I only noticed it recently.
Roland