Hi all! Im sort of new to this whole thing but here it goes, I have a 1987 subaru gl base with the stock EA82 engine in it. Im 16 and I certainly dont know all that much about cars so Im not sure what could be going on but ill try to explain, I had removed the battery and when I went to put it back in I placed the positive wire to the positive terminal and the black box thats mounted to the coolant tank popped and start to smoke. All three wires that were in it blew in half and now when I go to start it nothing happens. The battery was in correctly im not that naive but im not sure what I need to do. Any suggestions?