I bought a 2011 SR5 Tundra a few months ago and wanted to upgrade the mirror. I wanted an EC Mirror with a compass, but didn't need the backup camera. So, I went on-line and found a plug 'n play mirror for the 2007-2009 Tundra, and figured it would work fine in my 2011 Tundra. It's the PT 374-34070 (or 00016-34011) mirror. which is the Gentex 536, and has EC, Compass, Homelink, and the silly shift light. Well, on install I found that I only have the 14 pin connector, and do not have a 10 pin to mate with the new mirror. It was then searched the forums and found that the 10 pin connector was dropped for the 2010 Tundra model year.
The forums also mentioned that only three pin are needed out of the 14 pin connector. So I searched around and found a suitable 10-pin connector for the mirror side. What I found was a 10-pin USB 1.0 connector for AT/ATX motherboards ... see the link:
Amazon.com: DUAL USB CONNECTOR, 10 PIN CONN.: Electronics
This is a USB 1.0 connector for AT/ATX. Note: USB 2.0 connectors are 9-pin. If you go the USB 2.0 route, you will need to drill out a new pin hole in the connector. So I cut-out the unnecessary wires, soldered pins on the three needed wires, and shrink-wrapped. I attached two pictures of the connector, a before and after shot. I used pins off the back of an old hard drive, they fit nicely into the 14-pin socket holes.
The install was now easy: mounted the mirror, inserted the three pins into the 14-pin connector, slipped the 10-pin connector through the headliner, plugged the 10-pin connector into the mirror, and re-hung the overhead console. All mirror functions tested fine. I still need to program the homelink functions.