Add audio from a camera after the fact?

[IReallyLikePizza2]

Just shouted at some people throwing trash outside my house. Got a pretty clear audio from another camera, but not with the one with the video

Any way to add it in after the fact? I could edit it in and post, but I'm hoping there is an easy way to do it

 

[IReallyLikePizza2]

And yes, I've ordered another T5442T-ZE!

 

[JNDATHP]

If you wanted to use the clip for any legal reasons, you would taint the video and it would be tossed out. Better to use both clips and hopefully your time stamps are in sync.