Sorry for reviving an older thread, but I just picked up my 2021 Sierra Elevation
I picked up a Gentek mirror with homelink, autodim and compass with a 3 wire hook up - ground, switched power (Compass) and 12V (homelink). I was going hook up compass and homelink to switched power.
I have the unused autodim mirror connector glued in my overhead console. I clipped it off and checked all the wires but couldn't find any power at all (switched or constant). Any ideas/suggestions?
Before i order the fuse tap from Amazon, thought I'd check to see if I was missing something....
