user26414: I am looking at buying a Canon Rebel T6 to record video, but would like to have better audio than the built in microphone. Is there any way, with an adapter or otherwise, that I can use this camera to record video with externally supplied audio?

user23465: Welcome to Video Production Stack Exchange! 
Bad news first- 
Unfortunately, you are stuck with the in-camera mic with the T6. The T6i has a microphone jack for mounting an external microphone. If you want to mount an external mic to a Canon Rebel T6 body and record that audio stream to the same SD card, that's really your only option. 
However
Can you elaborate a little on what your uses for the video are and what your workflow is? 
I have shot on a T6 and T6i extensively and I eventually determined the workflow that was best for me was to use a Zoom H4N as my primary sound recorder (placed somewhere out of sight in the shot) and synced the audio streams together in Adobe Premiere during post production. 

26414: <p>I am looking at buying a Canon Rebel T6 to record video, but would like to have better audio than the built in microphone. Is there any way, with an adapter or otherwise, that I can use this camera to record video with externally supplied audio?</p>
 23465: <p><strong>Welcome to Video Production Stack Exchange!</strong> </p>

<p><strong>Bad news first-</strong> </p>

<p>Unfortunately, you are stuck with the in-camera mic with the T6. The <strong><em>T6i</em></strong> has a microphone jack for mounting an external microphone. If you want to mount an external mic to a Canon Rebel T6 body and record that audio stream to the same SD card, that's really your only option. </p>

<p><strong>However</strong></p>

<p>Can you elaborate a little on what your uses for the video are and what your workflow is? </p>

<p>I have shot on a T6 and T6i extensively and I eventually determined the workflow that was best for me was to use a Zoom H4N as my primary sound recorder (placed somewhere out of sight in the shot) and synced the audio streams together in Adobe Premiere during post production. </p>
