I have a 2013 DCLB SR5 with base/non-JBL display audio, build date July 2013
Another member was selling 2014 Entune Navigation units in the marketplace thread.
I purchased one, and for those interested, it bolts right up, plugs right in, everything works. Seller provided a sat antenna than can mount under the dash.
USB/Aux, steering wheel controls, Bluetooth, microphone, power, dimmer, GPS, all work without any mods.
But.... I cannot register with entune, because of course, it says my truck vin is invalid, does not have Entune. I don't know if I will be able to work around that.
But there it is.... I'll also be selling by base display audio system in the coming days. Thanks!