Install 2013 Tacoma radio into my 2012 Tacoma

I am new to this post. I have installed a 2013 touch screen into my 2012 Tacoma, got every to work the way I wanted, but I don't know how to get the overhead OEM mic that I added myself to work with the bluetooth for the phone. Note, I do not have the audio controller on the steering wheel, I was thinking that's what I would need, but not sure. Will it work without installing the audio control on the steering wheel. I look under the airbag and only saw one connector for the airbag and the ground. This led me to think that if I need to install the audio control I will need to replace the clockspring too. These are all my speculation, but unsure of what to do. I only need the bluetooth to work with or without the audio control; however I do not want to splice any wires. Please, please, please, some body help. Thank you.