[Bruce Edwards]

Curt,

So the main feed wire for the car is getting hot? Install a 30 amp relay. It sounds like someone wired the fan straight to a source like the fuse box and the load is to high for the wire size. Find the wire that feeds the fan now and use that one for the feed to the relay. Take another wire from a battery sorce and hook it on to the feed side for the fan. Hook the fan feed wire to the relay so when it comes on the battery feed will juice it. Ground the other realy terminal that is the mate for the feed from the car i.e the one that now turns on the relay.
This will take the load off the harness and put it on the battery and the larger cables that can take the load.
Easy!

Then again I have been doing this for 20 something years.

Bruce Edwards
Gemini Motorcars Inc.