Quick search, I found this one
http://www.subsim.com/radioroom/show...880#post606880
dunno if it'll still work... Seems to me that there is something newer, but I are old, and I are easily confused, and have been known to lose track of time...
Edit: ... and the confusion is in full evidence there...

updated in 2016, a certain propbeanie posted in there in 2017...