? On Melted Wire in Harness

[Ragucci05]

I was just curious to see if anybody else has had this problem. My parents have an L300 V6 2002 and we had an automatic starter put in a Valet, which is one of the best products out there, but the people who installed it are out of business and its acting quite strange. It would start and then shut rite down and now the car will just die at any random point in time. We brought it to someone who specializes in eletronics and eletrical problems with cars and he chased down a wire that had nothing to do with the automatic starter that was actually in the original harness that was MELTED..... I was just wondering if anybody knew what the heck is up with that or if anybody has encountered a melted wire in there stock wiring harness under the dash?
The technician said it has absolutley nothing to do with the automatic starter so it just got me curious to find out...

PLEASE HELP lol
Thank you,
Matt