Group, The fuse extension that Travis made will fix the melted fuse because the wire acts as a heat sink if you don't cut it short. But the question is, what caused it. Which fuse was it? What ever the problem is will continue and may cause another problem down the line. As far as the cooling fans.Yes they draw a lot of current when they come on for a millisecond or two. But the fans running longer or not cycling or wired to run all the time never gives the wire any cooling time and hence the wire melts or gets so hot it's on the border of melting. I have had two calls in the last two weeks on factory original fan fail jumpers melting and causing a fire in the relay compartment. If you want to avoid this problem I would advise you re evaluate the factory jumper and consider another product. I am installing a Thermal circuit breaker on the Fan Fix for the melt down problem. If your interested in this feature please email. John@xxxxx John Hervey www.specialtauto.com << I recently had the lovely melted fuse box but I repaired it with the pig tail. At the same time the relay/fan fix had melted, but it is now repaired. My guess is the fans cycling. That seems to make the most sense. I will listen for the fans during long distance driving at night and see if that is indeed the cause. >>