Hi, GJR thank you for you respond. I repinned already. when i got the mirror the wires in harness where on 1,2,3,4, and 5 6,7 were empty. by readying and looking on line , i found out that 6,7 are for temp. sensor, so i repinned that way . now i have 1,2 power and ground 6,7 temp. sensor. yes my mirror it single display. I havent installed my truck , just did some bench test make sure it works. Mirror turns on and temp. sensor its connect to mirror. but when i try to change from compass to temp. it doesnt read nothing. I been reading about the 177 and seem like there are different models. mine only have compass/mirror others have compass/temperature. but cause i saw mine it has the same conectors as the other i was thinking all i have to do its repinned for temp. sensor and be working .your mirror has compass/mirror or compass/temp. i keep trying to see if it works for temp. if not i have to get another i reallly like to have one with compass and temp.