2011 LE- Mirror, Send Temp Reading To Replacement Mirror??

[kmlinaurora]

2007 Pathfinder "complete loss" accident. I purchased 2011 LE to replace it. This 11 has compass and temp displayed on nav screen and nothing but auto dimming, home link mirror- I liked having the compass and temp in the mirror. I switched out the 2011 auto mirror with my 07's auto dim, home link, compass and temp mirror. Same harness connector- auto dim, home link and compass work fine but I get OC (open circuit) in temp display area. Anyone know how I can split the temp signal running to the nav screen temp display, or run a wire within exiting harnesses to the mirror connector to close the circuit and get temp reading in the mirror as well? Hoping that since the harness connector was the same that this will be as easy as splicing into an existing wire or running wire from connector to connector to send and display the temp. If so, I will need to know what pin on the mirror connector is used for temp signal.