Ordered the BD Speedo from Dakota that is supposed to fit Big Dogs and of course it does not fit the tank mount, nor does the plug fit. Has anyone found a speedo that will fit/work on a 2000 Vintage Sport? Mine is super erratic and just reads 0 mph most of the time. I've done the checking gear sensor, speedo connections, etc., with no luck. Any help would be appreciated.

Welcome from Louisiana.