Ive used a jumper wire under the steering column fuse box and it works for 30 mins or soo and keeps blowing the fuse. Any other suggestions would greatly be appreciated. believe it or not Northern Mississippi trucks need heat too...

 

sound's like you have a short in the wiring or not sure what it's called but the relay up above the glove box is maybe burnt out ?

 

I'll check that out next. thanks

 

the fan motor could also be bad drawing to much power and over heating the curcuit. thats what mine was doing