A few years ago I notciced while driving all of the instrument gauges suddenly and for no apparent reason swept to the max readings along with all the indicator lights. This would happen very infrequently. Recently it's been ocurring more often. It is also happening with the ignition off and keys out. I noticced that just prior to the sweep, a slight clicking sound comming from the direction of the instrument panel which sounds like a relay. I'm hesitant to take it in yet and wanted to check if anyone else ever experienced this problem. HELP Please if you can