I replaced the fuse with a 25 amp and it worked fine. I then disconnected the positive on the battery, tried pushing the lighter in again, and it blew the fuse on the next try. My friend thought he saw a spark at the dash where the lighter is connected but I'm not sure. I did notice the fuse light up and blow at the fuse panel. This thing works one minute and then not the next. Real fustrating. It may be the assembly is faulty, I may try and get a different one. This one is brand new from Advance Auto.