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					Originally Posted by GaryC  The unit got here today. Isn't there supposed to be two wire connections on the back of the dial? I only have one. | 
	
 Gary,
I have three of these and all of them have three wires. The box has three wires from the dial and three wires out. Red positive, Black negative, Green tach.
I attached a new dial their plastic on the back now, but same as the same original part number when cross referenced. I hope this helps.