I have a 1996 190 horizon and only some of the gauges work (speed, tach, oil and volt) but the temp, fuel and trim don't work. I took out the whole cluster/panel and it looks like all the gauges are tied together into a wiring harness and into one clip. The whole thing is sealed shut and I can't service it or replace a single gauge. Where can I buy a direct replacement? OR how can I test the individual pins in the clip to see if it's the instrument assembly or something on the other side. Thanks!