Side mirror question, can anybody answer?

I've never seen a posting on TW where someone has followed the wire to its end.
But yes, the wire has a plug attached inside the door.

 

Yes it goes in to the door and . To the dash and terminates somewhere. On the fusebox u der dash it is supposed to terminate in that location. However I am missing the wires.

 

I'm new here, excuse me if this is not the right place to post this but the topic is mirrors. I have a 2015 access cab without power mirrors. Does anyone know if the harness for the mirrors is in the doors and under the dash for the switch? I'd like to add power. Thanx

 

(I'm sorry if you've already answered this somewhere else) Do you remember where you bought the 4runner mirrors? Thanks in advance for your time!

 

Here: