My speedometer and tachometer do not work. They quit suddenly. The control center, or whatever you call it, quit along with heater blower and heated seats. I found a blown fuse in the side panel and replaced it. Now just speedometer and tach are not working. I found a fuse blown under backseat but every time I replace it, it blows again. I would like to know if and where the short is. I do not want to spend a lot of cash to fix it. Please help if you can.