some dumb *** in my shop rounded the plug in the side of the head is there anyway i can splice it into the stock fan switch?

 

Do you mean tap off the stock temp sensor? Don't think that will work. Some people have plumbed adapters into a heater hose with success.

 

well do the temp sending unit and the fan switch share a plug or do you mean tap into the stock fan switch i can do what ever needs to be done but the plug i was supost to take out isnt coming out unless i take the head off