So according to a couple of guys here, they put the DL3 optioned mirrors on their truck that didn’t have them factory optioned, and then also added the drivers master switch with the power folding control option, and it worked. So in addition to the DL3 optioned mirrors, you would also need this switch:
That’s the master switch with the power fold control for the exterior mirrors. I’ve haven’t done this swap, as my truck already has the DL3 option mirrors that power folding and have turn signals, so I’m not 100% sure on it. But from a couple of the other threads I’ve read on the topic that seemed to do the trick.
Edit:
@Tonyrodz can you chime in?! I seem to remember you did the DL3 swap? Did you have to add extra wires for turn signals? Or did it work just with the control switch swap and mirror swap?