Just installed some new reverse glow gauges and i have a few problems. one i accidently broke oner of the needles off and now am not sure if it works anymore, its the gas needle and i was able to put it back on but not sur if it will stay and work. second, after everything was put on and i test drove my car to see if all the gauges were working the speedometer will kivk in after a couple of seconds of driving. so im not sure if its giving me an accurate reading of my speed. can anybody give me any help?