If you have the RA1 without the camera you wont have any wires running to the mirror, best bet is to buy the harness from quirk or tasca for 25.00 plus shipping and a mirror off ebay. them its all plug and play. As previous poster said the connector is located behind the passengers side ac vent.
1. Remove both a pillar covers
2. Remove both sun visors and anchor clips
3. Remove existing mirror
4. remove passenger's side dash endcap and airvent
5. lower headliner just enough so you can get access to run the harness by carefully working it out of the rubber door gaskets
6. pug new harness into existing plug behind dash
7. route new harness thru dash up the passengers side a pillar and across the roof to the mirror.
8. the new harness will have Christmas tree anchors, the truck body will have corresponding holes along the route just push them into the holes.
9. the headliner will have a notch wher the mirror plug exits.
10. plug into new mirror and install new mirror and trim pieces.
11. put headliner back into door gaskets, reinstall visors and a pillar covers.
It really is fairly straight forward, just use care and take your time. I wore latex gloves to avoid getting the headliner dirty. It takes maybe an hour or two, and its all pnp. One thing I did was to plug it all together prior to installing just to make sure everything was good. Oh and mine involved removing the existing harness because I have clearance lights, my new harness was for both so I had to replce the one that was there which made it a little bit harder. Still only took about 2 hours and I feel was the best solution.
RLK that oem hands free kit you have there is for my gig radios, 2012 and prior model years, it will not work on 2013 and up trucks.