I have a 2000 Wrangler with the 2.5L and an automatic. I have a very strange gauge issue. Only happens when head lights are on. When I turn on my headlights, my speedometer and tachometer will go in and out and everyone once in a while I get the "No Bus" and check engine light. It is sporadic, only the speedo and tach and only when head lights are on. All other gauges are fine along with blinkers and headlights. Only speedo and tach. I can also push in the headlight switch for just parking lights and gauges and they will come back. Pull to all the way out for headlights sporadic operation of tach and speedo again. I have replaced the headlight switch, taken out gauges and cleaned, positioned prongs and installed with di-electric grease. Cannot figure it out. Any help with this. It is frustrating.