On October 17, 2014 at 23:57, iform said...
These speakers have integrated or add-on back boxes, they are not a vapor barrier per se. When you cut in a hole for a speaker, there is a break in the vapor barrier that needs to be addressed.
We wind up just getting in the attic to tape a vapor boot over the speaker. It sucks, but then we won't be responsible if something happens.
I figure that makes the most sense, but least amount of fun.
Thanks to all for the feedback.