Potential FIRE issue in ProStar HVAC harness and Linear Power Module

[74bassman]

The 30 amp fuse gets so hot it burns my fingers. I did go to Rush here in Atl, and they want me to bring the truck in to replace that harness. They said it would take about 1 week for them to get to it. So, I'm just going to buy the harness and do it my self. Does this harness plug directly into the plugs that are there? I figure I was going to have to go back into heater core, and blower motor area. I did take out the passenger seat and left it out to run this week to test the fixes. good thing thing i haven't put it all back together.

When i find and move the ambient air temperature sensor will i have to add any wire to it.