Ok, yet another problem with my Cobra. I seek the infinite wisdom of SVTP for guidance. My speedometer has gone haywire. It almost never reads correctly (if it reads anything at all that is). I can be going 65 and it will say I'm either going 115, or 0. Sometimes if I tap the speedometer area with my finger it will jump back into the correct position. But this only works 10% of the time. My car has 4.10 gears and a speedo correcter installed by the previous owner.