As mentioned it could be the connections on the dash amp. gauge. Do you have access to a ammeter you could put in line with just the fuasble link circuit that's getting hot to see how many amps. it's drawing while you are driving/running it?
i do not. i cut the wire that goes to the amp guage in the car, and when the car idles, and i touch them, it sparks a little bit, but if i hold the gas at like 2500rpm, and touch them together, it was like a explosion. i burn my right index finger all up. it was like welding. the wire ends literally fused back together.
i have just put a new altenator and voltage regulator on the car to no avail