Faulty alternator wiring (help!)

[Dawes]

Hi I have a 92 loyale (with a/c) I have had problems with the alternator ground wire having a bad connection... And I'm guessing you all know how that turned out. Fixed that and I had bad alternator symptoms once again. So my question is.. After I test the alternator I'd like to replace the wiring is that something I can buy at an auto parts store.. Or should I just add new connections and hope it won't happen again? Thanks!