Bob Dollenmeyer

ok folks i just purchased a set of towing mirrors for my 2011 suburban LTZ 4WD they are made in china of course. brand Sanooer. i have unplugged the wires from the armrest and plugged them into the hew mirrors. everything works except the under mirror lights or backup lights whatever they are. how do i get the backup/marker light to work? the original mirrors have lights on the bottom of the mirror to light the ground around the door so these should work the same way but i cant find where to hook them up and no wiring diagrams. my original mirrors had the auto fold option and the tow mirrors do not and there's only 1 connector on the tow mirrors and there were 2 connectors on the original mirrors. that other connector i am sure was for the folding option and it seems since those lights do not work on the new tow mirrors, there is some connection in that other connector that has that light function. anyone help with this? thanks in advance if someone can get me that information quickly.