rx slim

I have a 1994, and this electrical problem is driving me nuts. My problem started quite a while ago, when my lights were left on and I had to jump the car. Everything was fine for a short while, but then the battery died again. I charged the battery, but continued to have weird problems with the alternator light, along with about every other light in my dash, and the car running really rough. I replaced the alternator and battery, car ran fine for about a week. Then the same problems came on with rough ride and lights in dash. I inspected the harness into the alternator and both wires are frayed and fairly corroded as they come out of the harness, so I figured maybe they are shorting each other. (I believe these are L and S in the shop manual). The bottom wire "L" was so corroded it broke as I was messing with it. Now when I start the car it runs great, with no light problems, but as I connect L back together by toughing the frayed end to the harness problems immediately return. I don't think I can just leave it disconnected, but I'm not really sure what the real problem could be. Sorry so wordy, but I wanted to give a good description if anybody has encountered this before. If I replace it with better wire would it solve a resistance issue and probably run fine?? Or could it be another problem altogether. Any help is greatly appreciated.
Basically where does the L wire go so I can check for a short.

XSTransAm

first fix the frayed wire, shorting currents can cause all sorts of weird ****.

BigBoosting

Yeah I think it's definitely to do with that wire. I had the same problem on my car. So at least you know what the problem is, congratulations LOL Mine ended up not getting a good connection with plug on the alternator (somehow the wire was short and shrinking back into the harness), so I extended the wire and it's fine. Definitely fix that frayed wire and then report back. Also be sure your new alternator works right...I replaced mine too at first and ended up getting a brand new defective one. You should able to take it to Autozone or somewhere and they'll test it for you.