I have a 2014 mercury 4 stroke 150hp outboard. Recently the alternator went out and I replaced it with a new one. I have replaced the alternator but now I have no tach or speedometer. The analog guages are hooked up with an AGI smartcraft 892486k01 interface to allow analog gauges to be used. Ther trim,charging,oil gauges are working fine. Any Ideas? Can I check with a meter to see if the tach is good?Thx
